31489064 has 16 divisors (see below), whose sum is σ = 59440500. Its totient is φ = 15638272.

The previous prime is 31489063. The next prime is 31489069. The reversal of 31489064 is 46098413.

It can be written as a sum of positive squares in 2 ways, for example, as 26604964 + 4884100 = 5158^2 + 2210^2 .

It is a super-2 number, since 2×31489064² = 1983122303192192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31489063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12017 + ... + 14400.

Almost surely, 2^31489064 is an apocalyptic number.

It is an amenable number.

31489064 is a deficient number, since it is larger than the sum of its proper divisors (27951436).

31489064 is a wasteful number, since it uses less digits than its factorization.

31489064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26572 (or 26568 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 31489064 is about 5611.5117392731. The cubic root of 31489064 is about 315.7814276585.

The spelling of 31489064 in words is "thirty-one million, four hundred eighty-nine thousand, sixty-four".