13556998 has 16 divisors (see below), whose sum is σ = 25028640. Its totient is φ = 5363136.

The previous prime is 13556993. The next prime is 13556999. The reversal of 13556998 is 89965531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13556993) 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, 37063 + ... + 37426.

It is an arithmetic number, because the mean of its divisors is an integer number (1564290).

Almost surely, 2^13556998 is an apocalyptic number.

13556998 is a deficient number, since it is larger than the sum of its proper divisors (11471642).

13556998 is a wasteful number, since it uses less digits than its factorization.

13556998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74511.

The product of its digits is 291600, while the sum is 46.

The square root of 13556998 is about 3681.9828896941. The cubic root of 13556998 is about 238.4447935252. Note that the first 3 decimals are identical.

The spelling of 13556998 in words is "thirteen million, five hundred fifty-six thousand, nine hundred ninety-eight".