726196531 has 8 divisors (see below), whose sum is σ = 769278384. Its totient is φ = 683155200.

The previous prime is 726196529. The next prime is 726196543. The reversal of 726196531 is 135691627.

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

It is not a de Polignac number, because 726196531 - 2¹ = 726196529 is a prime.

It is a super-2 number, since 2×726196531² = 1054722803272867922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726196561) 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, 31756 + ... + 49606.

It is an arithmetic number, because the mean of its divisors is an integer number (96159798).

Almost surely, 2^726196531 is an apocalyptic number.

726196531 is a deficient number, since it is larger than the sum of its proper divisors (43081853).

726196531 is a wasteful number, since it uses less digits than its factorization.

726196531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20261.

The product of its digits is 68040, while the sum is 40.

The square root of 726196531 is about 26948.0338985982. The cubic root of 726196531 is about 898.8448269938.

The spelling of 726196531 in words is "seven hundred twenty-six million, one hundred ninety-six thousand, five hundred thirty-one".