31612963 has 16 divisors (see below), whose sum is σ = 33841152. Its totient is φ = 29484000.

The previous prime is 31612961. The next prime is 31612969. The reversal of 31612963 is 36921613.

It is a cyclic number.

It is not a de Polignac number, because 31612963 - 2¹ = 31612961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31612961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116518 + ... + 116788.

It is an arithmetic number, because the mean of its divisors is an integer number (2115072).

Almost surely, 2^31612963 is an apocalyptic number.

31612963 is a deficient number, since it is larger than the sum of its proper divisors (2228189).

31612963 is a wasteful number, since it uses less digits than its factorization.

31612963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426.

The product of its digits is 5832, while the sum is 31.

The square root of 31612963 is about 5622.5406179058. The cubic root of 31612963 is about 316.1950506268.

The spelling of 31612963 in words is "thirty-one million, six hundred twelve thousand, nine hundred sixty-three".