13645797 has 16 divisors (see below), whose sum is σ = 20490240. Its totient is φ = 8002800.

The previous prime is 13645789. The next prime is 13645799. The reversal of 13645797 is 79754631.

It is not a de Polignac number, because 13645797 - 2³ = 13645789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13645799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5647 + ... + 7692.

It is an arithmetic number, because the mean of its divisors is an integer number (1280640).

Almost surely, 2^13645797 is an apocalyptic number.

It is an amenable number.

13645797 is a deficient number, since it is larger than the sum of its proper divisors (6844443).

13645797 is a wasteful number, since it uses less digits than its factorization.

13645797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13384.

The product of its digits is 158760, while the sum is 42.

The square root of 13645797 is about 3694.0217920310. The cubic root of 13645797 is about 238.9642693269.

The spelling of 13645797 in words is "thirteen million, six hundred forty-five thousand, seven hundred ninety-seven".