12699936 has 48 divisors (see below), whose sum is σ = 37044000. Its totient is φ = 4233024.

The previous prime is 12699931. The next prime is 12699949. The reversal of 12699936 is 63999621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12699936² = 322576748808192, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12699891 and 12699900.

It is not an unprimeable number, because it can be changed into a prime (12699931) 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, 6486 + ... + 8213.

It is an arithmetic number, because the mean of its divisors is an integer number (771750).

Almost surely, 2^12699936 is an apocalyptic number.

12699936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12699936 is an abundant number, since it is smaller than the sum of its proper divisors (24344064).

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

12699936 is a wasteful number, since it uses less digits than its factorization.

12699936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14718 (or 14704 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 12699936 is about 3563.6969568132. The cubic root of 12699936 is about 233.3102634788.

The spelling of 12699936 in words is "twelve million, six hundred ninety-nine thousand, nine hundred thirty-six".