31434663 has 8 divisors (see below), whose sum is σ = 45137008. Its totient is φ = 19344384.

The previous prime is 31434643. The next prime is 31434691. The reversal of 31434663 is 36643413.

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

It is not a de Polignac number, because 31434663 - 2⁸ = 31434407 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 31434663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434643) 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, 402970 + ... + 403047.

It is an arithmetic number, because the mean of its divisors is an integer number (5642126).

Almost surely, 2^31434663 is an apocalyptic number.

31434663 is a deficient number, since it is larger than the sum of its proper divisors (13702345).

31434663 is a wasteful number, since it uses less digits than its factorization.

31434663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806033.

The product of its digits is 15552, while the sum is 30.

The square root of 31434663 is about 5606.6623761379. The cubic root of 31434663 is about 315.5994731896.

The spelling of 31434663 in words is "thirty-one million, four hundred thirty-four thousand, six hundred sixty-three".