31329093 has 8 divisors (see below), whose sum is σ = 41802688. Its totient is φ = 20870784.

The previous prime is 31329073. The next prime is 31329101. The reversal of 31329093 is 39092313.

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

It is not a de Polignac number, because 31329093 - 2⁵ = 31329061 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 31329093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31329073) 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 7 ways as a sum of consecutive naturals, for example, 2421 + ... + 8277.

It is an arithmetic number, because the mean of its divisors is an integer number (5225336).

Almost surely, 2^31329093 is an apocalyptic number.

It is an amenable number.

31329093 is a deficient number, since it is larger than the sum of its proper divisors (10473595).

31329093 is a wasteful number, since it uses less digits than its factorization.

31329093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7643.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 31329093 is about 5597.2397661705. The cubic root of 31329093 is about 315.2457744264.

The spelling of 31329093 in words is "thirty-one million, three hundred twenty-nine thousand, ninety-three".