13636998 has 20 divisors (see below), whose sum is σ = 30557340. Its totient is φ = 4545612.

The previous prime is 13636981. The next prime is 13637011. The reversal of 13636998 is 89963631.

13636998 is a `hidden beast` number, since 1 + 3 + 636 + 9 + 9 + 8 = 666.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41928 + ... + 42251.

It is an arithmetic number, because the mean of its divisors is an integer number (1527867).

Almost surely, 2^13636998 is an apocalyptic number.

13636998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13636998 is an abundant number, since it is smaller than the sum of its proper divisors (16920342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13636998 is an equidigital number, since it uses as much as digits as its factorization.

13636998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84193 (or 84184 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 13636998 is about 3692.8306216235. The cubic root of 13636998 is about 238.9128957866.

The spelling of 13636998 in words is "thirteen million, six hundred thirty-six thousand, nine hundred ninety-eight".