31345677 has 16 divisors (see below), whose sum is σ = 50660160. Its totient is φ = 18997200.

The previous prime is 31345669. The next prime is 31345679. The reversal of 31345677 is 77654313.

It is not a de Polignac number, because 31345677 - 2³ = 31345669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31345679) 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 15 ways as a sum of consecutive naturals, for example, 52474 + ... + 53067.

It is an arithmetic number, because the mean of its divisors is an integer number (3166260).

Almost surely, 2^31345677 is an apocalyptic number.

It is an amenable number.

31345677 is a deficient number, since it is larger than the sum of its proper divisors (19314483).

31345677 is a wasteful number, since it uses less digits than its factorization.

31345677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105561 (or 105555 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 31345677 is about 5598.7210146604. The cubic root of 31345677 is about 315.3013895454.

The spelling of 31345677 in words is "thirty-one million, three hundred forty-five thousand, six hundred seventy-seven".