621087152 has 60 divisors (see below), whose sum is σ = 1404849816. Its totient is φ = 265224960.

The previous prime is 621087107. The next prime is 621087179. The reversal of 621087152 is 251780126.

It is a super-2 number, since 2×621087152² = 771498500758942208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244127 + ... + 246657.

Almost surely, 2^621087152 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 621087152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702424908).

621087152 is an abundant number, since it is smaller than the sum of its proper divisors (783762664).

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

621087152 is a wasteful number, since it uses less digits than its factorization.

621087152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866 (or 2853 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 621087152 is about 24921.6201720514. The cubic root of 621087152 is about 853.2000033116.

The spelling of 621087152 in words is "six hundred twenty-one million, eighty-seven thousand, one hundred fifty-two".