13247907 has 4 divisors (see below), whose sum is σ = 17663880. Its totient is φ = 8831936.

The previous prime is 13247903. The next prime is 13247911. The reversal of 13247907 is 70974231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70974231 = 3 ⋅23658077.

It is an interprime number because it is at equal distance from previous prime (13247903) and next prime (13247911).

It is a cyclic number.

It is not a de Polignac number, because 13247907 - 2² = 13247903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13247903) 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, 2207982 + ... + 2207987.

It is an arithmetic number, because the mean of its divisors is an integer number (4415970).

Almost surely, 2^13247907 is an apocalyptic number.

13247907 is a deficient number, since it is larger than the sum of its proper divisors (4415973).

13247907 is an equidigital number, since it uses as much as digits as its factorization.

13247907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415972.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 13247907 is about 3639.7674376257. The cubic root of 13247907 is about 236.6187143034.

The spelling of 13247907 in words is "thirteen million, two hundred forty-seven thousand, nine hundred seven".