31634 has 4 divisors (see below), whose sum is σ = 47454. Its totient is φ = 15816.

The previous prime is 31627. The next prime is 31643. The reversal of 31634 is 43613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21025 + 10609 = 145^2 + 103^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7907 + ... + 7910.

2³¹⁶³⁴ is an apocalyptic number.

31634 is a deficient number, since it is larger than the sum of its proper divisors (15820).

31634 is a wasteful number, since it uses less digits than its factorization.

31634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15819.

The product of its digits is 216, while the sum is 17.

The square root of 31634 is about 177.8594951078. The cubic root of 31634 is about 31.6265172919.

The spelling of 31634 in words is "thirty-one thousand, six hundred thirty-four".