620637675 has 72 divisors (see below), whose sum is σ = 1199891952. Its totient is φ = 282240000.

The previous prime is 620637653. The next prime is 620637691. The reversal of 620637675 is 576736026.

It is not a de Polignac number, because 620637675 - 2⁹ = 620637163 is a prime.

It is a super-2 number, since 2×620637675² = 770382247258811250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1032375 + ... + 1032975.

It is an arithmetic number, because the mean of its divisors is an integer number (16665166).

Almost surely, 2^620637675 is an apocalyptic number.

620637675 is a deficient number, since it is larger than the sum of its proper divisors (579254277).

620637675 is a wasteful number, since it uses less digits than its factorization.

620637675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 42.

The square root of 620637675 is about 24912.6007273428. The cubic root of 620637675 is about 852.9941350881.

The spelling of 620637675 in words is "six hundred twenty million, six hundred thirty-seven thousand, six hundred seventy-five".