617323980 has 96 divisors (see below), whose sum is σ = 2127412224. Its totient is φ = 130247424.

The previous prime is 617323951. The next prime is 617324047. The reversal of 617323980 is 89323716.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51072 + ... + 61991.

It is an arithmetic number, because the mean of its divisors is an integer number (22160544).

Almost surely, 2^617323980 is an apocalyptic number.

617323980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

617323980 is an abundant number, since it is smaller than the sum of its proper divisors (1510088244).

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

617323980 is a wasteful number, since it uses less digits than its factorization.

617323980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113095 (or 113093 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 617323980 is about 24846.0053127258. The cubic root of 617323980 is about 851.4733294200.

The spelling of 617323980 in words is "six hundred seventeen million, three hundred twenty-three thousand, nine hundred eighty".