31314439 has 8 divisors (see below), whose sum is σ = 33914160. Its totient is φ = 28742016.

The previous prime is 31314407. The next prime is 31314457. The reversal of 31314439 is 93441313.

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

It is a cyclic number.

It is not a de Polignac number, because 31314439 - 2⁵ = 31314407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31314539) 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, 4402 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (4239270).

Almost surely, 2^31314439 is an apocalyptic number.

31314439 is a deficient number, since it is larger than the sum of its proper divisors (2599721).

31314439 is a wasteful number, since it uses less digits than its factorization.

31314439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13649.

The product of its digits is 3888, while the sum is 28.

The square root of 31314439 is about 5595.9305749804. The cubic root of 31314439 is about 315.1966153052.

The spelling of 31314439 in words is "thirty-one million, three hundred fourteen thousand, four hundred thirty-nine".