12680690 has 16 divisors (see below), whose sum is σ = 24900480. Its totient is φ = 4611120.

The previous prime is 12680683. The next prime is 12680699. The reversal of 12680690 is 9608621.

It is a super-2 number, since 2×12680690² = 321599797752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12680699) 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, 57530 + ... + 57749.

It is an arithmetic number, because the mean of its divisors is an integer number (1556280).

Almost surely, 2^12680690 is an apocalyptic number.

12680690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12680690 is a deficient number, since it is larger than the sum of its proper divisors (12219790).

12680690 is a wasteful number, since it uses less digits than its factorization.

12680690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115297.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 12680690 is about 3560.9956472874. The cubic root of 12680690 is about 233.1923479371.

The spelling of 12680690 in words is "twelve million, six hundred eighty thousand, six hundred ninety".