623979216 has 60 divisors (see below), whose sum is σ = 1995746272. Its totient is φ = 178279488.

The previous prime is 623979197. The next prime is 623979289. The reversal of 623979216 is 612979326.

It is a happy number.

623979216 is a `hidden beast` number, since 623 + 9 + 7 + 9 + 2 + 16 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308506 + ... + 310521.

Almost surely, 2^623979216 is an apocalyptic number.

It is an amenable number.

623979216 is an abundant number, since it is smaller than the sum of its proper divisors (1371767056).

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

623979216 is a wasteful number, since it uses less digits than its factorization.

623979216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619048 (or 619039 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 623979216 is about 24979.5759771858. The cubic root of 623979216 is about 854.5222487409.

The spelling of 623979216 in words is "six hundred twenty-three million, nine hundred seventy-nine thousand, two hundred sixteen".