12699808 has 48 divisors (see below), whose sum is σ = 27609120. Its totient is φ = 5702400.

The previous prime is 12699787. The next prime is 12699811. The reversal of 12699808 is 80899621.

It is a happy number.

It is a super-2 number, since 2×12699808² = 322570246473728, which contains 22 as substring.

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, 38203 + ... + 38533.

It is an arithmetic number, because the mean of its divisors is an integer number (575190).

Almost surely, 2^12699808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12699808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13804560).

12699808 is an abundant number, since it is smaller than the sum of its proper divisors (14909312).

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

12699808 is a wasteful number, since it uses less digits than its factorization.

12699808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 12699808 is about 3563.6789978897. The cubic root of 12699808 is about 233.3094796477.

The spelling of 12699808 in words is "twelve million, six hundred ninety-nine thousand, eight hundred eight".