621160904 has 64 divisors (see below), whose sum is σ = 1449705600. Its totient is φ = 242947584.

The previous prime is 621160801. The next prime is 621160907. The reversal of 621160904 is 409061126.

It is not an unprimeable number, because it can be changed into a prime (621160907) 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 15 ways as a sum of consecutive naturals, for example, 59999 + ... + 69585.

It is an arithmetic number, because the mean of its divisors is an integer number (22651650).

Almost surely, 2^621160904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621160904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724852800).

621160904 is an abundant number, since it is smaller than the sum of its proper divisors (828544696).

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

621160904 is a wasteful number, since it uses less digits than its factorization.

621160904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9702 (or 9698 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 621160904 is about 24923.0998072070. The cubic root of 621160904 is about 853.2337735138.

The spelling of 621160904 in words is "six hundred twenty-one million, one hundred sixty thousand, nine hundred four".