123664704 has 112 divisors (see below), whose sum is σ = 343326720. Its totient is φ = 39237120.

The previous prime is 123664691. The next prime is 123664727. The reversal of 123664704 is 407466321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470077 + ... + 470339.

Almost surely, 2^123664704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123664704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171663360).

123664704 is an abundant number, since it is smaller than the sum of its proper divisors (219662016).

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

123664704 is a wasteful number, since it uses less digits than its factorization.

123664704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 123664704 is about 11120.4632997011. The cubic root of 123664704 is about 498.2132278296.

The spelling of 123664704 in words is "one hundred twenty-three million, six hundred sixty-four thousand, seven hundred four".