726307864 has 48 divisors (see below), whose sum is σ = 1452674880. Its totient is φ = 340369920.

The previous prime is 726307861. The next prime is 726307903. The reversal of 726307864 is 468703627.

It is a happy number.

It is a super-2 number, since 2×726307864² = 1055046226616484992, 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 726307864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726307861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732409 + ... + 733399.

It is an arithmetic number, because the mean of its divisors is an integer number (30264060).

Almost surely, 2^726307864 is an apocalyptic number.

It is an amenable number.

726307864 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

726307864 is a wasteful number, since it uses less digits than its factorization.

726307864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 726307864 is about 26950.0995174415. The cubic root of 726307864 is about 898.8907585350.

The spelling of 726307864 in words is "seven hundred twenty-six million, three hundred seven thousand, eight hundred sixty-four".