13479988 has 12 divisors (see below), whose sum is σ = 24227812. Its totient is φ = 6557760.

The previous prime is 13479979. The next prime is 13480003. The reversal of 13479988 is 88997431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11102224 + 2377764 = 3332^2 + 1542^2 .

It is a congruent number.

It is an unprimeable number.

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, 45393 + ... + 45688.

Almost surely, 2^13479988 is an apocalyptic number.

It is an amenable number.

13479988 is a deficient number, since it is larger than the sum of its proper divisors (10747824).

13479988 is a wasteful number, since it uses less digits than its factorization.

13479988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91122 (or 91120 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 13479988 is about 3671.5103159327. The cubic root of 13479988 is about 237.9924437965.

The spelling of 13479988 in words is "thirteen million, four hundred seventy-nine thousand, nine hundred eighty-eight".