13407866 has 12 divisors (see below), whose sum is σ = 21365358. Its totient is φ = 6309312.

The previous prime is 13407859. The next prime is 13407869. The reversal of 13407866 is 66870431.

It can be written as a sum of positive squares in 3 ways, for example, as 11082241 + 2325625 = 3329^2 + 1525^2 .

It is not an unprimeable number, because it can be changed into a prime (13407869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11021 + ... + 12176.

Almost surely, 2^13407866 is an apocalyptic number.

13407866 is a deficient number, since it is larger than the sum of its proper divisors (7957492).

13407866 is a wasteful number, since it uses less digits than its factorization.

13407866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23233 (or 23216 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 13407866 is about 3661.6752996409. The cubic root of 13407866 is about 237.5672407948.

The spelling of 13407866 in words is "thirteen million, four hundred seven thousand, eight hundred sixty-six".