617978832 has 40 divisors (see below), whose sum is σ = 1690356096. Its totient is φ = 193875456.

The previous prime is 617978827. The next prime is 617978833. The reversal of 617978832 is 238879716.

617978832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617978833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377848 + ... + 379479.

Almost surely, 2^617978832 is an apocalyptic number.

It is an amenable number.

617978832 is an abundant number, since it is smaller than the sum of its proper divisors (1072377264).

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

617978832 is a wasteful number, since it uses less digits than its factorization.

617978832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757355 (or 757349 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 617978832 is about 24859.1800347477. The cubic root of 617978832 is about 851.7743015649.

The spelling of 617978832 in words is "six hundred seventeen million, nine hundred seventy-eight thousand, eight hundred thirty-two".