12406775 has 12 divisors (see below), whose sum is σ = 16054032. Its totient is φ = 9493440.

The previous prime is 12406769. The next prime is 12406777. The reversal of 12406775 is 57760421.

It is not a de Polignac number, because 12406775 - 2⁴ = 12406759 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10214 + ... + 11363.

It is an arithmetic number, because the mean of its divisors is an integer number (1337836).

Almost surely, 2^12406775 is an apocalyptic number.

12406775 is a deficient number, since it is larger than the sum of its proper divisors (3647257).

12406775 is a wasteful number, since it uses less digits than its factorization.

12406775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21610 (or 21605 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 12406775 is about 3522.3252263242. The cubic root of 12406775 is about 231.5010519197.

The spelling of 12406775 in words is "twelve million, four hundred six thousand, seven hundred seventy-five".