13998798 has 32 divisors (see below), whose sum is σ = 33937920. Its totient is φ = 4241880.

The previous prime is 13998773. The next prime is 13998811. The reversal of 13998798 is 89789931.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11190 + ... + 12377.

It is an arithmetic number, because the mean of its divisors is an integer number (1060560).

Almost surely, 2^13998798 is an apocalyptic number.

13998798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13998798 is an abundant number, since it is smaller than the sum of its proper divisors (19939122).

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

13998798 is a wasteful number, since it uses less digits than its factorization.

13998798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23589 (or 23583 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 13998798 is about 3741.4967593197. The cubic root of 13998798 is about 241.0073286225.

The spelling of 13998798 in words is "thirteen million, nine hundred ninety-eight thousand, seven hundred ninety-eight".