723526864 has 10 divisors (see below), whose sum is σ = 1401833330. Its totient is φ = 361763424.

The previous prime is 723526841. The next prime is 723526889. The reversal of 723526864 is 468625327.

It can be written as a sum of positive squares in only one way, i.e., 437646400 + 285880464 = 20920^2 + 16908^2 .

It is a super-2 number, since 2×723526864² = 1046982245859348992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 723526864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610199 + ... + 22610230.

It is an arithmetic number, because the mean of its divisors is an integer number (140183333).

Almost surely, 2^723526864 is an apocalyptic number.

It is an amenable number.

723526864 is a deficient number, since it is larger than the sum of its proper divisors (678306466).

723526864 is a wasteful number, since it uses less digits than its factorization.

723526864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45220437 (or 45220431 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 723526864 is about 26898.4546768025. The cubic root of 723526864 is about 897.7420204274.

The spelling of 723526864 in words is "seven hundred twenty-three million, five hundred twenty-six thousand, eight hundred sixty-four".