620756928 has 84 divisors (see below), whose sum is σ = 1941060888. Its totient is φ = 188106240.

The previous prime is 620756911. The next prime is 620756953. The reversal of 620756928 is 829657026.

620756928 is a `hidden beast` number, since 62 + 0 + 7 + 569 + 28 = 666.

It is a zygodrome in base 8.

It is a congruent number.

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, 42651 + ... + 55322.

Almost surely, 2^620756928 is an apocalyptic number.

It is an amenable number.

620756928 is an abundant number, since it is smaller than the sum of its proper divisors (1320303960).

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

620756928 is a wasteful number, since it uses less digits than its factorization.

620756928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98002 (or 97989 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 620756928 is about 24914.9940397344. The cubic root of 620756928 is about 853.0487647049.

The spelling of 620756928 in words is "six hundred twenty million, seven hundred fifty-six thousand, nine hundred twenty-eight".