13189797 has 32 divisors (see below), whose sum is σ = 20440960. Its totient is φ = 8503056.

The previous prime is 13189789. The next prime is 13189801. The reversal of 13189797 is 79798131.

It is not a de Polignac number, because 13189797 - 2³ = 13189789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13189747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80838 + ... + 81000.

It is an arithmetic number, because the mean of its divisors is an integer number (638780).

Almost surely, 2^13189797 is an apocalyptic number.

It is an amenable number.

13189797 is a deficient number, since it is larger than the sum of its proper divisors (7251163).

13189797 is an frugal number, since it uses more digits than its factorization.

13189797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 203 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 13189797 is about 3631.7760118157. The cubic root of 13189797 is about 236.2722428037.

The spelling of 13189797 in words is "thirteen million, one hundred eighty-nine thousand, seven hundred ninety-seven".