747631317 has 8 divisors (see below), whose sum is σ = 997033024. Its totient is φ = 498325248.

The previous prime is 747631289. The next prime is 747631369. The reversal of 747631317 is 713136747.

It is a happy number.

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

It is not a de Polignac number, because 747631317 - 2²⁷ = 613413589 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 (747632317) 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, 3073 + ... + 38790.

It is an arithmetic number, because the mean of its divisors is an integer number (124629128).

Almost surely, 2^747631317 is an apocalyptic number.

It is an amenable number.

747631317 is a deficient number, since it is larger than the sum of its proper divisors (249401707).

747631317 is a wasteful number, since it uses less digits than its factorization.

747631317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47819.

The product of its digits is 74088, while the sum is 39.

The square root of 747631317 is about 27342.8476388250. The cubic root of 747631317 is about 907.6028026729.

The spelling of 747631317 in words is "seven hundred forty-seven million, six hundred thirty-one thousand, three hundred seventeen".