13279856 has 20 divisors (see below), whose sum is σ = 27243792. Its totient is φ = 6249216.

The previous prime is 13279853. The next prime is 13279909. The reversal of 13279856 is 65897231.

13279856 = T₆₉₆ + T₆₉₇ + ... + T₇₄₆.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13279853) 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, 24140 + ... + 24683.

Almost surely, 2^13279856 is an apocalyptic number.

13279856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13279856 is an abundant number, since it is smaller than the sum of its proper divisors (13963936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13279856 is a wasteful number, since it uses less digits than its factorization.

13279856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48848 (or 48842 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 13279856 is about 3644.1536740374. The cubic root of 13279856 is about 236.8087735671.

The spelling of 13279856 in words is "thirteen million, two hundred seventy-nine thousand, eight hundred fifty-six".