31889483 has 8 divisors (see below), whose sum is σ = 33125376. Its totient is φ = 30666600.

The previous prime is 31889479. The next prime is 31889527. The reversal of 31889483 is 38498813.

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 31889483 - 2² = 31889479 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31889413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1898 + ... + 8208.

It is an arithmetic number, because the mean of its divisors is an integer number (4140672).

Almost surely, 2^31889483 is an apocalyptic number.

31889483 is a deficient number, since it is larger than the sum of its proper divisors (1235893).

31889483 is a wasteful number, since it uses less digits than its factorization.

31889483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505.

The product of its digits is 165888, while the sum is 44.

The square root of 31889483 is about 5647.0773856925. The cubic root of 31889483 is about 317.1142996555.

The spelling of 31889483 in words is "thirty-one million, eight hundred eighty-nine thousand, four hundred eighty-three".