13427915 has 4 divisors (see below), whose sum is σ = 16113504. Its totient is φ = 10742328.

The previous prime is 13427863. The next prime is 13427917. The reversal of 13427915 is 51972431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51972431 = 7 ⋅7424633.

It is a cyclic number.

It is not a de Polignac number, because 13427915 - 2¹⁸ = 13165771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13427917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342787 + ... + 1342796.

It is an arithmetic number, because the mean of its divisors is an integer number (4028376).

Almost surely, 2^13427915 is an apocalyptic number.

13427915 is a deficient number, since it is larger than the sum of its proper divisors (2685589).

13427915 is an equidigital number, since it uses as much as digits as its factorization.

13427915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685588.

The product of its digits is 7560, while the sum is 32.

The square root of 13427915 is about 3664.4119582820. The cubic root of 13427915 is about 237.6855945414.

The spelling of 13427915 in words is "thirteen million, four hundred twenty-seven thousand, nine hundred fifteen".