6725420 has 24 divisors (see below), whose sum is σ = 15210384. Its totient is φ = 2483136.

The previous prime is 6725401. The next prime is 6725423. The reversal of 6725420 is 245276.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 6725420.

It is not an unprimeable number, because it can be changed into a prime (6725423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12674 + ... + 13193.

It is an arithmetic number, because the mean of its divisors is an integer number (633766).

Almost surely, 2^6725420 is an apocalyptic number.

It is an amenable number.

6725420 is an abundant number, since it is smaller than the sum of its proper divisors (8484964).

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

6725420 is a wasteful number, since it uses less digits than its factorization.

6725420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25889 (or 25887 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 6725420 is about 2593.3414738518. The cubic root of 6725420 is about 188.7584795103.

The spelling of 6725420 in words is "six million, seven hundred twenty-five thousand, four hundred twenty".