620630616 has 16 divisors (see below), whose sum is σ = 1551576600. Its totient is φ = 206876864.

The previous prime is 620630609. The next prime is 620630623. The reversal of 620630616 is 616036026.

It is an interprime number because it is at equal distance from previous prime (620630609) and next prime (620630623).

It is a congruent number.

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, 12929781 + ... + 12929828.

Almost surely, 2^620630616 is an apocalyptic number.

It is an amenable number.

620630616 is an abundant number, since it is smaller than the sum of its proper divisors (930945984).

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

620630616 is a wasteful number, since it uses less digits than its factorization.

620630616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25859618 (or 25859614 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 620630616 is about 24912.4590516472. The cubic root of 620630616 is about 852.9909011516.

The spelling of 620630616 in words is "six hundred twenty million, six hundred thirty thousand, six hundred sixteen".