13099998 has 16 divisors (see below), whose sum is σ = 26908560. Its totient is φ = 4248576.

The previous prime is 13099991. The next prime is 13100023. The reversal of 13099998 is 89999031.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13099991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29283 + ... + 29726.

It is an arithmetic number, because the mean of its divisors is an integer number (1681785).

Almost surely, 2^13099998 is an apocalyptic number.

13099998 is an abundant number, since it is smaller than the sum of its proper divisors (13808562).

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

13099998 is a wasteful number, since it uses less digits than its factorization.

13099998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59051.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 13099998 is about 3619.3919378813. The cubic root of 13099998 is about 235.7348237647.

It can be divided in two parts, 130 and 99998, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 13099998 in words is "thirteen million, ninety-nine thousand, nine hundred ninety-eight".