6909012 has 72 divisors (see below), whose sum is σ = 19393920. Its totient is φ = 2056320.

The previous prime is 6909011. The next prime is 6909013. The reversal of 6909012 is 2109096.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6909011) and next prime (6909013).

It is a super-2 number, since 2×6909012² = 95468893632288, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6909011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28789 + ... + 29027.

It is an arithmetic number, because the mean of its divisors is an integer number (269360).

Almost surely, 2^6909012 is an apocalyptic number.

It is a pronic number, being equal to 2628×2629.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6909012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9696960).

6909012 is an abundant number, since it is smaller than the sum of its proper divisors (12484908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6909012 is a wasteful number, since it uses less digits than its factorization.

6909012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 6909012 is about 2628.4999524444. The cubic root of 6909012 is about 190.4606734701.

The spelling of 6909012 in words is "six million, nine hundred nine thousand, twelve".