13372287 has 4 divisors (see below), whose sum is σ = 17829720. Its totient is φ = 8914856.

The previous prime is 13372279. The next prime is 13372297. The reversal of 13372287 is 78227331.

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

It is a cyclic number.

It is not a de Polignac number, because 13372287 - 2³ = 13372279 is a prime.

It is a super-2 number, since 2×13372287² = 357636119220738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13372267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2228712 + ... + 2228717.

It is an arithmetic number, because the mean of its divisors is an integer number (4457430).

Almost surely, 2^13372287 is an apocalyptic number.

13372287 is a deficient number, since it is larger than the sum of its proper divisors (4457433).

13372287 is an equidigital number, since it uses as much as digits as its factorization.

13372287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457432.

The product of its digits is 14112, while the sum is 33.

The square root of 13372287 is about 3656.8137770469. The cubic root of 13372287 is about 237.3569191744.

The spelling of 13372287 in words is "thirteen million, three hundred seventy-two thousand, two hundred eighty-seven".