12855969 has 32 divisors (see below), whose sum is σ = 21934080. Its totient is φ = 7290000.

The previous prime is 12855967. The next prime is 12855977. The reversal of 12855969 is 96955821.

It is not a de Polignac number, because 12855969 - 2¹ = 12855967 is a prime.

It is a super-2 number, since 2×12855969² = 330551877857922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12855967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47304 + ... + 47574.

It is an arithmetic number, because the mean of its divisors is an integer number (685440).

Almost surely, 2^12855969 is an apocalyptic number.

It is an amenable number.

12855969 is a deficient number, since it is larger than the sum of its proper divisors (9078111).

12855969 is a wasteful number, since it uses less digits than its factorization.

12855969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 532 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 12855969 is about 3585.5221377088. The cubic root of 12855969 is about 234.2618698822.

It can be divided in two parts, 12855 and 969, that added together give a cube (13824 = 24³).

The spelling of 12855969 in words is "twelve million, eight hundred fifty-five thousand, nine hundred sixty-nine".