623456216 has 32 divisors (see below), whose sum is σ = 1252787040. Its totient is φ = 290112768.

The previous prime is 623456191. The next prime is 623456231. The reversal of 623456216 is 612654326.

It is a happy number.

623456216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 38981 + ... + 52596.

It is an arithmetic number, because the mean of its divisors is an integer number (39149595).

Almost surely, 2^623456216 is an apocalyptic number.

It is an amenable number.

623456216 is an abundant number, since it is smaller than the sum of its proper divisors (629330824).

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

623456216 is a wasteful number, since it uses less digits than its factorization.

623456216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91643 (or 91639 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 623456216 is about 24969.1052302641. The cubic root of 623456216 is about 854.2834373370.

The spelling of 623456216 in words is "six hundred twenty-three million, four hundred fifty-six thousand, two hundred sixteen".