13399895 has 4 divisors (see below), whose sum is σ = 16079880. Its totient is φ = 10719912.

The previous prime is 13399889. The next prime is 13399949. The reversal of 13399895 is 59899331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59899331 = 2269 ⋅26399.

It is a cyclic number.

It is not a de Polignac number, because 13399895 - 2¹⁰ = 13398871 is a prime.

It is a super-2 number, since 2×13399895² = 359114372022050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339985 + ... + 1339994.

It is an arithmetic number, because the mean of its divisors is an integer number (4019970).

Almost surely, 2^13399895 is an apocalyptic number.

13399895 is a deficient number, since it is larger than the sum of its proper divisors (2679985).

13399895 is an equidigital number, since it uses as much as digits as its factorization.

13399895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679984.

The product of its digits is 262440, while the sum is 47.

The square root of 13399895 is about 3660.5867016095. The cubic root of 13399895 is about 237.5201534145.

The spelling of 13399895 in words is "thirteen million, three hundred ninety-nine thousand, eight hundred ninety-five".