12677999 has 4 divisors (see below), whose sum is σ = 12838560. Its totient is φ = 12517440.

The previous prime is 12677993. The next prime is 12678019. The reversal of 12677999 is 99977621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12677999 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12677993) 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, 80162 + ... + 80319.

It is an arithmetic number, because the mean of its divisors is an integer number (3209640).

Almost surely, 2^12677999 is an apocalyptic number.

12677999 is a deficient number, since it is larger than the sum of its proper divisors (160561).

12677999 is an equidigital number, since it uses as much as digits as its factorization.

12677999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160560.

The product of its digits is 428652, while the sum is 50.

The square root of 12677999 is about 3560.6177834752. The cubic root of 12677999 is about 233.1758513321.

It can be divided in two parts, 126 and 77999, that added together give a 7-th power (78125 = 5⁷).

The spelling of 12677999 in words is "twelve million, six hundred seventy-seven thousand, nine hundred ninety-nine".