726733764 has 27 divisors (see below), whose sum is σ = 1837430413. Its totient is φ = 242190672.

The previous prime is 726733747. The next prime is 726733801. The reversal of 726733764 is 467337627.

The square root of 726733764 is 26958.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 724148100 + 2585664 = 26910^2 + 1608^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 159502 + ... + 163994.

Almost surely, 2^726733764 is an apocalyptic number.

726733764 is the 26958-th square number.

It is an amenable number.

726733764 is an abundant number, since it is smaller than the sum of its proper divisors (1110696649).

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

726733764 is an equidigital number, since it uses as much as digits as its factorization.

726733764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8996 (or 4498 counting only the distinct ones).

The product of its digits is 889056, while the sum is 45.

The cubic root of 726733764 is about 899.0664245239.

The spelling of 726733764 in words is "seven hundred twenty-six million, seven hundred thirty-three thousand, seven hundred sixty-four".