13397769 has 24 divisors (see below), whose sum is σ = 24128832. Its totient is φ = 6959520.

The previous prime is 13397729. The next prime is 13397803. The reversal of 13397769 is 96779331.

13397769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13397769 - 2¹³ = 13389577 is a prime.

It is a super-2 number, since 2×13397769² = 359000428354722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13397719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8974 + ... + 10359.

It is an arithmetic number, because the mean of its divisors is an integer number (1005368).

Almost surely, 2^13397769 is an apocalyptic number.

It is an amenable number.

13397769 is a deficient number, since it is larger than the sum of its proper divisors (10731063).

13397769 is a wasteful number, since it uses less digits than its factorization.

13397769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19357 (or 19354 counting only the distinct ones).

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

The square root of 13397769 is about 3660.2962994818. The cubic root of 13397769 is about 237.5075912624.

The spelling of 13397769 in words is "thirteen million, three hundred ninety-seven thousand, seven hundred sixty-nine".