12694976 has 56 divisors (see below), whose sum is σ = 29504640. Its totient is φ = 5306112.

The previous prime is 12694901. The next prime is 12694987. The reversal of 12694976 is 67949621.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×12694976² = 322324831281152, which contains 22 as substring.

It is a congruent number.

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, 18935 + ... + 19593.

Almost surely, 2^12694976 is an apocalyptic number.

12694976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12694976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14752320).

12694976 is an abundant number, since it is smaller than the sum of its proper divisors (16809664).

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

12694976 is an equidigital number, since it uses as much as digits as its factorization.

12694976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 711 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 12694976 is about 3563.0009823181. Note that the first 3 decimals coincide. The cubic root of 12694976 is about 233.2798861711.

The spelling of 12694976 in words is "twelve million, six hundred ninety-four thousand, nine hundred seventy-six".