31379882 has 4 divisors (see below), whose sum is σ = 47069826. Its totient is φ = 15689940.

The previous prime is 31379867. The next prime is 31379899. The reversal of 31379882 is 28897313.

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

It can be written as a sum of positive squares in only one way, i.e., 18412681 + 12967201 = 4291^2 + 3601^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7844969 + ... + 7844972.

Almost surely, 2^31379882 is an apocalyptic number.

31379882 is a deficient number, since it is larger than the sum of its proper divisors (15689944).

31379882 is a wasteful number, since it uses less digits than its factorization.

31379882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15689943.

The product of its digits is 72576, while the sum is 41.

The square root of 31379882 is about 5601.7748972982. The cubic root of 31379882 is about 315.4160354822.

The spelling of 31379882 in words is "thirty-one million, three hundred seventy-nine thousand, eight hundred eighty-two".