620634616 has 16 divisors (see below), whose sum is σ = 1329931440. Its totient is φ = 265986240.

The previous prime is 620634593. The next prime is 620634631. The reversal of 620634616 is 616436026.

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, 5541325 + ... + 5541436.

It is an arithmetic number, because the mean of its divisors is an integer number (83120715).

Almost surely, 2^620634616 is an apocalyptic number.

It is an amenable number.

620634616 is an abundant number, since it is smaller than the sum of its proper divisors (709296824).

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

620634616 is a wasteful number, since it uses less digits than its factorization.

620634616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11082774 (or 11082770 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 620634616 is about 24912.5393326333. The cubic root of 620634616 is about 852.9927336728.

The spelling of 620634616 in words is "six hundred twenty million, six hundred thirty-four thousand, six hundred sixteen".