731472365 has 24 divisors (see below), whose sum is σ = 979080648. Its totient is φ = 521498880.

The previous prime is 731472361. The next prime is 731472367. The reversal of 731472365 is 563274137.

It can be written as a sum of positive squares in 12 ways, for example, as 412171204 + 319301161 = 20302^2 + 17869^2 .

It is not a de Polignac number, because 731472365 - 2² = 731472361 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731472361) 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 23 ways as a sum of consecutive naturals, for example, 47975 + ... + 61355.

It is an arithmetic number, because the mean of its divisors is an integer number (40795027).

Almost surely, 2^731472365 is an apocalyptic number.

It is an amenable number.

731472365 is a deficient number, since it is larger than the sum of its proper divisors (247608283).

731472365 is a wasteful number, since it uses less digits than its factorization.

731472365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13457 (or 13428 counting only the distinct ones).

The product of its digits is 105840, while the sum is 38.

The square root of 731472365 is about 27045.7457837642. The cubic root of 731472365 is about 901.0162861272.

The spelling of 731472365 in words is "seven hundred thirty-one million, four hundred seventy-two thousand, three hundred sixty-five".