13697249 has 8 divisors (see below), whose sum is σ = 14032512. Its totient is φ = 13366080.

The previous prime is 13697237. The next prime is 13697261. The reversal of 13697249 is 94279631.

It is an interprime number because it is at equal distance from previous prime (13697237) and next prime (13697261).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13697249 - 2²⁰ = 12648673 is a prime.

It is a super-2 number, since 2×13697249² = 375229260336002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13697269) 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, 6377 + ... + 8249.

It is an arithmetic number, because the mean of its divisors is an integer number (1754064).

Almost surely, 2^13697249 is an apocalyptic number.

It is an amenable number.

13697249 is a deficient number, since it is larger than the sum of its proper divisors (335263).

13697249 is a wasteful number, since it uses less digits than its factorization.

13697249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047.

The product of its digits is 81648, while the sum is 41.

The square root of 13697249 is about 3700.9794649525. The cubic root of 13697249 is about 239.2642339415.

The spelling of 13697249 in words is "thirteen million, six hundred ninety-seven thousand, two hundred forty-nine".