13397967 has 30 divisors (see below), whose sum is σ = 22015224. Its totient is φ = 8114040.

The previous prime is 13397963. The next prime is 13397977. The reversal of 13397967 is 76979331.

It is not a de Polignac number, because 13397967 - 2² = 13397963 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13397963) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 9118 + ... + 10484.

Almost surely, 2^13397967 is an apocalyptic number.

13397967 is a deficient number, since it is larger than the sum of its proper divisors (8617257).

13397967 is a wasteful number, since it uses less digits than its factorization.

13397967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1381 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 13397967 is about 3660.3233463726. The cubic root of 13397967 is about 237.5087612650.

The spelling of 13397967 in words is "thirteen million, three hundred ninety-seven thousand, nine hundred sixty-seven".