620725724 has 24 divisors (see below), whose sum is σ = 1101603888. Its totient is φ = 306010880.

The previous prime is 620725717. The next prime is 620725739. The reversal of 620725724 is 427527026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85559 + ... + 92529.

It is an arithmetic number, because the mean of its divisors is an integer number (45900162).

Almost surely, 2^620725724 is an apocalyptic number.

It is an amenable number.

620725724 is a deficient number, since it is larger than the sum of its proper divisors (480878164).

620725724 is a wasteful number, since it uses less digits than its factorization.

620725724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285 (or 7283 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 620725724 is about 24914.3678226039. The cubic root of 620725724 is about 853.0344708762.

The spelling of 620725724 in words is "six hundred twenty million, seven hundred twenty-five thousand, seven hundred twenty-four".