731366361 has 16 divisors (see below), whose sum is σ = 1182006720. Its totient is φ = 443252160.

The previous prime is 731366329. The next prime is 731366413. The reversal of 731366361 is 163663137.

731366361 is a `hidden beast` number, since 7 + 3 + 13 + 6 + 636 + 1 = 666.

It is not a de Polignac number, because 731366361 - 2⁵ = 731366329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (731366261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230960 + ... + 1231553.

It is an arithmetic number, because the mean of its divisors is an integer number (73875420).

Almost surely, 2^731366361 is an apocalyptic number.

It is an amenable number.

731366361 is a deficient number, since it is larger than the sum of its proper divisors (450640359).

731366361 is a wasteful number, since it uses less digits than its factorization.

731366361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462533 (or 2462527 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 731366361 is about 27043.7859960472. The cubic root of 731366361 is about 900.9727593315.

It can be divided in two parts, 73136 and 6361, that added together give a palindrome (79497).

The spelling of 731366361 in words is "seven hundred thirty-one million, three hundred sixty-six thousand, three hundred sixty-one".