12642694 has 8 divisors (see below), whose sum is σ = 18980640. Its totient is φ = 6315816.

The previous prime is 12642691. The next prime is 12642701. The reversal of 12642694 is 49624621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642691) 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, 1267 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (2372580).

Almost surely, 2^12642694 is an apocalyptic number.

12642694 is a deficient number, since it is larger than the sum of its proper divisors (6337946).

12642694 is a wasteful number, since it uses less digits than its factorization.

12642694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5534.

The product of its digits is 20736, while the sum is 34.

The square root of 12642694 is about 3555.6566200914. The cubic root of 12642694 is about 232.9592049756.

The spelling of 12642694 in words is "twelve million, six hundred forty-two thousand, six hundred ninety-four".