12677665 has 64 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 6819840.

The previous prime is 12677659. The next prime is 12677671. The reversal of 12677665 is 56677621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12677659) and next prime (12677671).

It is not a de Polignac number, because 12677665 - 2³ = 12677657 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 85011 + ... + 85159.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

Almost surely, 2^12677665 is an apocalyptic number.

It is an amenable number.

12677665 is a deficient number, since it is larger than the sum of its proper divisors (9095135).

12677665 is a wasteful number, since it uses less digits than its factorization.

12677665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202.

The product of its digits is 105840, while the sum is 40.

The square root of 12677665 is about 3560.5708811931. The cubic root of 12677665 is about 233.1738036530.

The spelling of 12677665 in words is "twelve million, six hundred seventy-seven thousand, six hundred sixty-five".