31314379 has 4 divisors (see below), whose sum is σ = 31339440. Its totient is φ = 31289320.

The previous prime is 31314373. The next prime is 31314397. The reversal of 31314379 is 97341313.

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

It is a cyclic number.

It is not a de Polignac number, because 31314379 - 2⁷ = 31314251 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 31314379.

It is not an unprimeable number, because it can be changed into a prime (31314373) 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, 10552 + ... + 13189.

It is an arithmetic number, because the mean of its divisors is an integer number (7834860).

Almost surely, 2^31314379 is an apocalyptic number.

31314379 is a deficient number, since it is larger than the sum of its proper divisors (25061).

31314379 is a wasteful number, since it uses less digits than its factorization.

31314379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25060.

The product of its digits is 6804, while the sum is 31.

The square root of 31314379 is about 5595.9252139392. The cubic root of 31314379 is about 315.1964139944.

The spelling of 31314379 in words is "thirty-one million, three hundred fourteen thousand, three hundred seventy-nine".