13270857 has 4 divisors (see below), whose sum is σ = 17694480. Its totient is φ = 8847236.

The previous prime is 13270853. The next prime is 13270867. The reversal of 13270857 is 75807231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75807231 = 3 ⋅25269077.

It is a cyclic number.

It is not a de Polignac number, because 13270857 - 2² = 13270853 is a prime.

It is a super-2 number, since 2×13270857² = 352231291028898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13270853) 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, 2211807 + ... + 2211812.

It is an arithmetic number, because the mean of its divisors is an integer number (4423620).

Almost surely, 2^13270857 is an apocalyptic number.

It is an amenable number.

13270857 is a deficient number, since it is larger than the sum of its proper divisors (4423623).

13270857 is an equidigital number, since it uses as much as digits as its factorization.

13270857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423622.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 13270857 is about 3642.9187473783. The cubic root of 13270857 is about 236.7552708861.

The spelling of 13270857 in words is "thirteen million, two hundred seventy thousand, eight hundred fifty-seven".