31392014 has 4 divisors (see below), whose sum is σ = 47088024. Its totient is φ = 15696006.

The previous prime is 31391999. The next prime is 31392017. The reversal of 31392014 is 41029313.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31392017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7848002 + ... + 7848005.

It is an arithmetic number, because the mean of its divisors is an integer number (11772006).

Almost surely, 2^31392014 is an apocalyptic number.

31392014 is a deficient number, since it is larger than the sum of its proper divisors (15696010).

31392014 is a wasteful number, since it uses less digits than its factorization.

31392014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15696009.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 31392014 is about 5602.8576637284. The cubic root of 31392014 is about 315.4566786593.

The spelling of 31392014 in words is "thirty-one million, three hundred ninety-two thousand, fourteen".