13392287 has 4 divisors (see below), whose sum is σ = 13854120. Its totient is φ = 12930456.

The previous prime is 13392263. The next prime is 13392293. The reversal of 13392287 is 78229331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78229331 = 359 ⋅217909.

It is a cyclic number.

It is not a de Polignac number, because 13392287 - 2²² = 9197983 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 (13392487) 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, 230873 + ... + 230930.

It is an arithmetic number, because the mean of its divisors is an integer number (3463530).

Almost surely, 2^13392287 is an apocalyptic number.

13392287 is a deficient number, since it is larger than the sum of its proper divisors (461833).

13392287 is an equidigital number, since it uses as much as digits as its factorization.

13392287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461832.

The product of its digits is 18144, while the sum is 35.

The square root of 13392287 is about 3659.5473763841. The cubic root of 13392287 is about 237.4751929768.

The spelling of 13392287 in words is "thirteen million, three hundred ninety-two thousand, two hundred eighty-seven".