13264397 has 4 divisors (see below), whose sum is σ = 13721820. Its totient is φ = 12806976.

The previous prime is 13264379. The next prime is 13264409. The reversal of 13264397 is 79346231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5317636 + 7946761 = 2306^2 + 2819^2 .

It is a cyclic number.

It is not a de Polignac number, because 13264397 - 2⁶ = 13264333 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 (13264327) by changing a digit.

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, 228668 + ... + 228725.

It is an arithmetic number, because the mean of its divisors is an integer number (3430455).

Almost surely, 2^13264397 is an apocalyptic number.

It is an amenable number.

13264397 is a deficient number, since it is larger than the sum of its proper divisors (457423).

13264397 is an equidigital number, since it uses as much as digits as its factorization.

13264397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457422.

The product of its digits is 27216, while the sum is 35.

The square root of 13264397 is about 3642.0319877783. The cubic root of 13264397 is about 236.7168486680.

The spelling of 13264397 in words is "thirteen million, two hundred sixty-four thousand, three hundred ninety-seven".