13489972 has 12 divisors (see below), whose sum is σ = 23677920. Its totient is φ = 6724856.

The previous prime is 13489963. The next prime is 13490023. The reversal of 13489972 is 27998431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3472 + ... + 6247.

It is an arithmetic number, because the mean of its divisors is an integer number (1973160).

Almost surely, 2^13489972 is an apocalyptic number.

It is an amenable number.

13489972 is a deficient number, since it is larger than the sum of its proper divisors (10187948).

13489972 is a wasteful number, since it uses less digits than its factorization.

13489972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10070 (or 10068 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 13489972 is about 3672.8697227100. The cubic root of 13489972 is about 238.0511859402.

It can be divided in two parts, 13 and 489972, that multiplied together give a palindrome (6369636).

The spelling of 13489972 in words is "thirteen million, four hundred eighty-nine thousand, nine hundred seventy-two".