620976808 has 16 divisors (see below), whose sum is σ = 1171306080. Its totient is φ = 308628528.

The previous prime is 620976751. The next prime is 620976821. The reversal of 620976808 is 808679026.

It is a super-2 number, since 2×620976808² = 771224392147737728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231066 + ... + 233737.

It is an arithmetic number, because the mean of its divisors is an integer number (73206630).

Almost surely, 2^620976808 is an apocalyptic number.

It is an amenable number.

620976808 is a deficient number, since it is larger than the sum of its proper divisors (550329272).

620976808 is a wasteful number, since it uses less digits than its factorization.

620976808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464976 (or 464972 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 620976808 is about 24919.4062529588. The cubic root of 620976808 is about 853.1494730563.

The spelling of 620976808 in words is "six hundred twenty million, nine hundred seventy-six thousand, eight hundred eight".