726613672 has 16 divisors (see below), whose sum is σ = 1362878100. Its totient is φ = 363179520.

The previous prime is 726613651. The next prime is 726613673. The reversal of 726613672 is 276316627.

It can be written as a sum of positive squares in 2 ways, for example, as 552532036 + 174081636 = 23506^2 + 13194^2 .

It is not an unprimeable number, because it can be changed into a prime (726613673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11022 + ... + 39682.

Almost surely, 2^726613672 is an apocalyptic number.

It is an amenable number.

726613672 is a deficient number, since it is larger than the sum of its proper divisors (636264428).

726613672 is a wasteful number, since it uses less digits than its factorization.

726613672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31836 (or 31832 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 726613672 is about 26955.7725172179. The cubic root of 726613672 is about 899.0168985314.

The spelling of 726613672 in words is "seven hundred twenty-six million, six hundred thirteen thousand, six hundred seventy-two".