12969690 has 16 divisors (see below), whose sum is σ = 31127328. Its totient is φ = 3458576.

The previous prime is 12969679. The next prime is 12969709. The reversal of 12969690 is 9696921.

It is a happy number.

It is a super-2 number, since 2×12969690² = 336425717392200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216132 + ... + 216191.

It is an arithmetic number, because the mean of its divisors is an integer number (1945458).

Almost surely, 2^12969690 is an apocalyptic number.

12969690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12969690 is an abundant number, since it is smaller than the sum of its proper divisors (18157638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12969690 is a wasteful number, since it uses less digits than its factorization.

12969690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432333.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 12969690 is about 3601.3455818624. The cubic root of 12969690 is about 234.9505856567.

The spelling of 12969690 in words is "twelve million, nine hundred sixty-nine thousand, six hundred ninety".