31634093 has 4 divisors (see below), whose sum is σ = 33494940. Its totient is φ = 29773248.

The previous prime is 31634033. The next prime is 31634129. The reversal of 31634093 is 39043613.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17330569 + 14303524 = 4163^2 + 3782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31634093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31634033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930398 + ... + 930431.

It is an arithmetic number, because the mean of its divisors is an integer number (8373735).

Almost surely, 2^31634093 is an apocalyptic number.

It is an amenable number.

31634093 is a deficient number, since it is larger than the sum of its proper divisors (1860847).

31634093 is a wasteful number, since it uses less digits than its factorization.

31634093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860846.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 31634093 is about 5624.4193478083. The cubic root of 31634093 is about 316.2654828459.

The spelling of 31634093 in words is "thirty-one million, six hundred thirty-four thousand, ninety-three".