31007093 has 12 divisors (see below), whose sum is σ = 34001604. Its totient is φ = 28108800.

The previous prime is 31007089. The next prime is 31007113. The reversal of 31007093 is 39070013.

It can be written as a sum of positive squares in 6 ways, for example, as 8898289 + 22108804 = 2983^2 + 4702^2 .

It is not a de Polignac number, because 31007093 - 2² = 31007089 is a prime.

It is a super-2 number, since 2×31007093² = 1922879632621298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31007023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48053 + ... + 48693.

It is an arithmetic number, because the mean of its divisors is an integer number (2833467).

Almost surely, 2^31007093 is an apocalyptic number.

It is an amenable number.

31007093 is a deficient number, since it is larger than the sum of its proper divisors (2994511).

31007093 is an equidigital number, since it uses as much as digits as its factorization.

31007093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 31007093 is about 5568.4012966021. The cubic root of 31007093 is about 314.1620223507.

The spelling of 31007093 in words is "thirty-one million, seven thousand, ninety-three".