13397764 has 12 divisors (see below), whose sum is σ = 23888844. Its totient is φ = 6572384.

The previous prime is 13397729. The next prime is 13397803. The reversal of 13397764 is 46779331.

It can be written as a sum of positive squares in 2 ways, for example, as 11957764 + 1440000 = 3458^2 + 1200^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31387 + ... + 31810.

It is an arithmetic number, because the mean of its divisors is an integer number (1990737).

Almost surely, 2^13397764 is an apocalyptic number.

It is an amenable number.

13397764 is a deficient number, since it is larger than the sum of its proper divisors (10491080).

13397764 is a wasteful number, since it uses less digits than its factorization.

13397764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63254 (or 63252 counting only the distinct ones).

The product of its digits is 95256, while the sum is 40.

The square root of 13397764 is about 3660.2956164769. The cubic root of 13397764 is about 237.5075617168.

It can be divided in two parts, 13397 and 764, that added together give a square (14161 = 119²).

The spelling of 13397764 in words is "thirteen million, three hundred ninety-seven thousand, seven hundred sixty-four".