12692690 has 16 divisors (see below), whose sum is σ = 23070528. Its totient is φ = 5027376.

The previous prime is 12692689. The next prime is 12692699. The reversal of 12692690 is 9629621.

It is a super-2 number, since 2×12692690² = 322208758872200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12692690.

It is not an unprimeable number, because it can be changed into a prime (12692699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5132 + ... + 7191.

It is an arithmetic number, because the mean of its divisors is an integer number (1441908).

Almost surely, 2^12692690 is an apocalyptic number.

12692690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12692690 is a deficient number, since it is larger than the sum of its proper divisors (10377838).

12692690 is a wasteful number, since it uses less digits than its factorization.

12692690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12433.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12692690 is about 3562.6801708826. The cubic root of 12692690 is about 233.2658829981.

The spelling of 12692690 in words is "twelve million, six hundred ninety-two thousand, six hundred ninety".