13272805 has 32 divisors (see below), whose sum is σ = 20256768. Its totient is φ = 8121600.

The previous prime is 13272799. The next prime is 13272823. The reversal of 13272805 is 50827231.

13272805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13272805 - 2³ = 13272797 is a prime.

It is a super-4 number, since 4×13272805⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13635 + ... + 14575.

It is an arithmetic number, because the mean of its divisors is an integer number (633024).

Almost surely, 2^13272805 is an apocalyptic number.

It is an amenable number.

13272805 is a deficient number, since it is larger than the sum of its proper divisors (6983963).

13272805 is a wasteful number, since it uses less digits than its factorization.

13272805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13272805 is about 3643.1861055949. The cubic root of 13272805 is about 236.7668545817.

The spelling of 13272805 in words is "thirteen million, two hundred seventy-two thousand, eight hundred five".