620617136 has 10 divisors (see below), whose sum is σ = 1202445732. Its totient is φ = 310308560.

The previous prime is 620617133. The next prime is 620617171. The reversal of 620617136 is 631716026.

It is not an unprimeable number, because it can be changed into a prime (620617133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19394270 + ... + 19394301.

Almost surely, 2^620617136 is an apocalyptic number.

It is an amenable number.

620617136 is a deficient number, since it is larger than the sum of its proper divisors (581828596).

620617136 is a wasteful number, since it uses less digits than its factorization.

620617136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38788579 (or 38788573 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 620617136 is about 24912.1885028193. The cubic root of 620617136 is about 852.9847254972.

The spelling of 620617136 in words is "six hundred twenty million, six hundred seventeen thousand, one hundred thirty-six".