623539616 has 24 divisors (see below), whose sum is σ = 1402964640. Its totient is φ = 267231168.

The previous prime is 623539613. The next prime is 623539627. The reversal of 623539616 is 616935326.

It is not an unprimeable number, because it can be changed into a prime (623539613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391606 + ... + 1392053.

It is an arithmetic number, because the mean of its divisors is an integer number (58456860).

Almost surely, 2^623539616 is an apocalyptic number.

It is an amenable number.

623539616 is an abundant number, since it is smaller than the sum of its proper divisors (779425024).

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

623539616 is a wasteful number, since it uses less digits than its factorization.

623539616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783676 (or 2783668 counting only the distinct ones).

The product of its digits is 174960, while the sum is 41.

The square root of 623539616 is about 24970.7752382660. The cubic root of 623539616 is about 854.3215282567.

The spelling of 623539616 in words is "six hundred twenty-three million, five hundred thirty-nine thousand, six hundred sixteen".