13697199 has 12 divisors (see below), whose sum is σ = 19929000. Its totient is φ = 9064944.

The previous prime is 13697197. The next prime is 13697207. The reversal of 13697199 is 99179631.

It is not a de Polignac number, because 13697199 - 2¹ = 13697197 is a prime.

It is a super-2 number, since 2×13697199² = 375226520891202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13697197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4224 + ... + 6725.

It is an arithmetic number, because the mean of its divisors is an integer number (1660750).

Almost surely, 2^13697199 is an apocalyptic number.

13697199 is a deficient number, since it is larger than the sum of its proper divisors (6231801).

13697199 is a wasteful number, since it uses less digits than its factorization.

13697199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11094 (or 11091 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 13697199 is about 3700.9727099777. The cubic root of 13697199 is about 239.2639428070.

The spelling of 13697199 in words is "thirteen million, six hundred ninety-seven thousand, one hundred ninety-nine".