31943093 has 8 divisors (see below), whose sum is σ = 39314688. Its totient is φ = 25273584.

The previous prime is 31943089. The next prime is 31943111. The reversal of 31943093 is 39034913.

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

It is not a de Polignac number, because 31943093 - 2² = 31943089 is a prime.

It is a super-2 number, since 2×31943093² = 2040722380813298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31943053) 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, 175421 + ... + 175602.

It is an arithmetic number, because the mean of its divisors is an integer number (4914336).

Almost surely, 2^31943093 is an apocalyptic number.

It is an amenable number.

31943093 is a deficient number, since it is larger than the sum of its proper divisors (7371595).

31943093 is a wasteful number, since it uses less digits than its factorization.

31943093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351043.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 31943093 is about 5651.8220955724. The cubic root of 31943093 is about 317.2919024081.

The spelling of 31943093 in words is "thirty-one million, nine hundred forty-three thousand, ninety-three".