13378497 has 16 divisors (see below), whose sum is σ = 19987392. Its totient is φ = 7888320.

The previous prime is 13378487. The next prime is 13378499. The reversal of 13378497 is 79487331.

It is not a de Polignac number, because 13378497 - 2⁷ = 13378369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13378499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4258 + ... + 6699.

It is an arithmetic number, because the mean of its divisors is an integer number (1249212).

Almost surely, 2^13378497 is an apocalyptic number.

It is an amenable number.

13378497 is a deficient number, since it is larger than the sum of its proper divisors (6608895).

13378497 is a wasteful number, since it uses less digits than its factorization.

13378497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11008.

The product of its digits is 127008, while the sum is 42.

The square root of 13378497 is about 3657.6627783326. The cubic root of 13378497 is about 237.3936558063.

The spelling of 13378497 in words is "thirteen million, three hundred seventy-eight thousand, four hundred ninety-seven".