731475901 has 8 divisors (see below), whose sum is σ = 787974264. Its totient is φ = 675010560.

The previous prime is 731475893. The next prime is 731475911. The reversal of 731475901 is 109574137.

It can be written as a sum of positive squares in 4 ways, for example, as 1071225 + 730404676 = 1035^2 + 27026^2 .

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 731475901 - 2³ = 731475893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731475911) 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, 56781 + ... + 68461.

It is an arithmetic number, because the mean of its divisors is an integer number (98496783).

Almost surely, 2^731475901 is an apocalyptic number.

It is an amenable number.

731475901 is a deficient number, since it is larger than the sum of its proper divisors (56498363).

731475901 is a wasteful number, since it uses less digits than its factorization.

731475901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16511.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 731475901 is about 27045.8111544098. The cubic root of 731475901 is about 901.0177379881.

The spelling of 731475901 in words is "seven hundred thirty-one million, four hundred seventy-five thousand, nine hundred one".