623734028 has 24 divisors (see below), whose sum is σ = 1114137024. Its totient is φ = 305452800.

The previous prime is 623734019. The next prime is 623734031. The reversal of 623734028 is 820437326.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53501 + ... + 64107.

It is an arithmetic number, because the mean of its divisors is an integer number (46422376).

Almost surely, 2^623734028 is an apocalyptic number.

It is an amenable number.

623734028 is a deficient number, since it is larger than the sum of its proper divisors (490402996).

623734028 is a wasteful number, since it uses less digits than its factorization.

623734028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10913 (or 10911 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 623734028 is about 24974.6677255174. The cubic root of 623734028 is about 854.4103080198.

The spelling of 623734028 in words is "six hundred twenty-three million, seven hundred thirty-four thousand, twenty-eight".