726252813 has 24 divisors (see below), whose sum is σ = 1232431200. Its totient is φ = 406294560.

The previous prime is 726252809. The next prime is 726252817. The reversal of 726252813 is 318252627.

726252813 is a `hidden beast` number, since 7 + 2 + 625 + 28 + 1 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (726252809) and next prime (726252817).

It is not a de Polignac number, because 726252813 - 2² = 726252809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726252817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280863 + ... + 283436.

It is an arithmetic number, because the mean of its divisors is an integer number (51351300).

Almost surely, 2^726252813 is an apocalyptic number.

It is an amenable number.

726252813 is a deficient number, since it is larger than the sum of its proper divisors (506178387).

726252813 is a wasteful number, since it uses less digits than its factorization.

726252813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564329 (or 564326 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 726252813 is about 26949.0781474988. The cubic root of 726252813 is about 898.8680472817.

The spelling of 726252813 in words is "seven hundred twenty-six million, two hundred fifty-two thousand, eight hundred thirteen".