12677639 has 8 divisors (see below), whose sum is σ = 13944000. Its totient is φ = 11452896.

The previous prime is 12677633. The next prime is 12677641. The reversal of 12677639 is 93677621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12677639 - 2⁸ = 12677383 is a prime.

It is a super-2 number, since 2×12677639² = 321445061228642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12677596 and 12677605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12677633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9764 + ... + 10985.

It is an arithmetic number, because the mean of its divisors is an integer number (1743000).

Almost surely, 2^12677639 is an apocalyptic number.

12677639 is a deficient number, since it is larger than the sum of its proper divisors (1266361).

12677639 is a wasteful number, since it uses less digits than its factorization.

12677639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20809.

The product of its digits is 95256, while the sum is 41.

The square root of 12677639 is about 3560.5672300913. The cubic root of 12677639 is about 233.1736442514.

The spelling of 12677639 in words is "twelve million, six hundred seventy-seven thousand, six hundred thirty-nine".