726575631 has 8 divisors (see below), whose sum is σ = 1025753904. Its totient is φ = 455890560.

The previous prime is 726575627. The next prime is 726575753. The reversal of 726575631 is 136575627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 726575631 - 2² = 726575627 is a prime.

It is a super-2 number, since 2×726575631² = 1055824295126096322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726575621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7123240 + ... + 7123341.

It is an arithmetic number, because the mean of its divisors is an integer number (128219238).

Almost surely, 2^726575631 is an apocalyptic number.

726575631 is a deficient number, since it is larger than the sum of its proper divisors (299178273).

726575631 is a wasteful number, since it uses less digits than its factorization.

726575631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14246601.

The product of its digits is 264600, while the sum is 42.

The square root of 726575631 is about 26955.0668891769. The cubic root of 726575631 is about 899.0012092685.

The spelling of 726575631 in words is "seven hundred twenty-six million, five hundred seventy-five thousand, six hundred thirty-one".