11967620 has 48 divisors (see below), whose sum is σ = 29140608. Its totient is φ = 4043520.

The previous prime is 11967617. The next prime is 11967649. The reversal of 11967620 is 2676911.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9635 + ... + 10805.

It is an arithmetic number, because the mean of its divisors is an integer number (607096).

Almost surely, 2^11967620 is an apocalyptic number.

11967620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11967620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14570304).

11967620 is an abundant number, since it is smaller than the sum of its proper divisors (17172988).

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

11967620 is a wasteful number, since it uses less digits than its factorization.

11967620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 11967620 is about 3459.4248076812. The cubic root of 11967620 is about 228.7367416445.

The spelling of 11967620 in words is "eleven million, nine hundred sixty-seven thousand, six hundred twenty".