723753668 has 12 divisors (see below), whose sum is σ = 1381711632. Its totient is φ = 328978920.

The previous prime is 723753571. The next prime is 723753703. The reversal of 723753668 is 866357327.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8224430 + ... + 8224517.

It is an arithmetic number, because the mean of its divisors is an integer number (115142636).

Almost surely, 2^723753668 is an apocalyptic number.

It is an amenable number.

723753668 is a deficient number, since it is larger than the sum of its proper divisors (657957964).

723753668 is a wasteful number, since it uses less digits than its factorization.

723753668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16448962 (or 16448960 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 47.

The square root of 723753668 is about 26902.6702763871. The cubic root of 723753668 is about 897.8358157051.

The spelling of 723753668 in words is "seven hundred twenty-three million, seven hundred fifty-three thousand, six hundred sixty-eight".