13998626 has 8 divisors (see below), whose sum is σ = 21285804. Its totient is φ = 6903360.

The previous prime is 13998613. The next prime is 13998631. The reversal of 13998626 is 62689931.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 1755625 = 3499^2 + 1325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 47795 + ... + 48086.

Almost surely, 2^13998626 is an apocalyptic number.

13998626 is a deficient number, since it is larger than the sum of its proper divisors (7287178).

13998626 is an equidigital number, since it uses as much as digits as its factorization.

13998626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95956.

The product of its digits is 139968, while the sum is 44.

The square root of 13998626 is about 3741.4737737956. The cubic root of 13998626 is about 241.0063415513.

The spelling of 13998626 in words is "thirteen million, nine hundred ninety-eight thousand, six hundred twenty-six".