31696663 has 6 divisors (see below), whose sum is σ = 32753112. Its totient is φ = 30673260.

The previous prime is 31696661. The next prime is 31696667. The reversal of 31696663 is 36669613.

It is not a de Polignac number, because 31696663 - 2¹ = 31696661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31696661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15531 + ... + 17452.

It is an arithmetic number, because the mean of its divisors is an integer number (5458852).

Almost surely, 2^31696663 is an apocalyptic number.

31696663 is a deficient number, since it is larger than the sum of its proper divisors (1056449).

31696663 is an equidigital number, since it uses as much as digits as its factorization.

31696663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33045 (or 33014 counting only the distinct ones).

The product of its digits is 104976, while the sum is 40.

The square root of 31696663 is about 5629.9789520033. The cubic root of 31696663 is about 316.4738624431.

The spelling of 31696663 in words is "thirty-one million, six hundred ninety-six thousand, six hundred sixty-three".