13198866 has 16 divisors (see below), whose sum is σ = 26792544. Its totient is φ = 4333824.

The previous prime is 13198859. The next prime is 13198877. The reversal of 13198866 is 66889131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16015 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (1674534).

Almost surely, 2^13198866 is an apocalyptic number.

13198866 is an abundant number, since it is smaller than the sum of its proper divisors (13593678).

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

13198866 is a wasteful number, since it uses less digits than its factorization.

13198866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32905.

The product of its digits is 62208, while the sum is 42.

The square root of 13198866 is about 3633.0243599514. The cubic root of 13198866 is about 236.3263821777.

The spelling of 13198866 in words is "thirteen million, one hundred ninety-eight thousand, eight hundred sixty-six".