731097625 has 8 divisors (see below), whose sum is σ = 912409992. Its totient is φ = 584878000.

The previous prime is 731097617. The next prime is 731097629. The reversal of 731097625 is 526790137.

731097625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22686169 + 708411456 = 4763^2 + 26616^2 .

It is not a de Polignac number, because 731097625 - 2³ = 731097617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731097629) 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, 2924266 + ... + 2924515.

It is an arithmetic number, because the mean of its divisors is an integer number (114051249).

Almost surely, 2^731097625 is an apocalyptic number.

It is an amenable number.

731097625 is a deficient number, since it is larger than the sum of its proper divisors (181312367).

731097625 is an equidigital number, since it uses as much as digits as its factorization.

731097625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848796 (or 5848786 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 731097625 is about 27038.8170044475. The cubic root of 731097625 is about 900.8623935422.

The spelling of 731097625 in words is "seven hundred thirty-one million, ninety-seven thousand, six hundred twenty-five".