726316331 has 8 divisors (see below), whose sum is σ = 782715360. Its totient is φ = 669992832.

The previous prime is 726316301. The next prime is 726316343. The reversal of 726316331 is 133613627.

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

It is a cyclic number.

It is not a de Polignac number, because 726316331 - 2¹⁰ = 726315307 is a prime.

It is a super-2 number, since 2×726316331² = 1055070825354603122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726316301) 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, 1955 + ... + 38163.

It is an arithmetic number, because the mean of its divisors is an integer number (97839420).

Almost surely, 2^726316331 is an apocalyptic number.

726316331 is a deficient number, since it is larger than the sum of its proper divisors (56399029).

726316331 is a wasteful number, since it uses less digits than its factorization.

726316331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37765.

The product of its digits is 13608, while the sum is 32.

The square root of 726316331 is about 26950.2566036021. The cubic root of 726316331 is about 898.8942514883.

Adding to 726316331 its reverse (133613627), we get a palindrome (859929958).

The spelling of 726316331 in words is "seven hundred twenty-six million, three hundred sixteen thousand, three hundred thirty-one".