31327697 has 8 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 30906544.

The previous prime is 31327663. The next prime is 31327711. The reversal of 31327697 is 79672313.

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 31327697 - 2²⁰ = 30279121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31327697.

It is not an unprimeable number, because it can be changed into a prime (31327657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24254 + ... + 25512.

It is an arithmetic number, because the mean of its divisors is an integer number (3969000).

Almost surely, 2^31327697 is an apocalyptic number.

It is an amenable number.

31327697 is a deficient number, since it is larger than the sum of its proper divisors (424303).

31327697 is a wasteful number, since it uses less digits than its factorization.

31327697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575.

The product of its digits is 47628, while the sum is 38.

The square root of 31327697 is about 5597.1150604575. The cubic root of 31327697 is about 315.2410919880.

The spelling of 31327697 in words is "thirty-one million, three hundred twenty-seven thousand, six hundred ninety-seven".