12693992 has 16 divisors (see below), whose sum is σ = 23864100. Its totient is φ = 6330240.

The previous prime is 12693991. The next prime is 12694013. The reversal of 12693992 is 29939621.

It can be written as a sum of positive squares in 2 ways, for example, as 12292036 + 401956 = 3506^2 + 634^2 .

It is a super-2 number, since 2×12693992² = 322274865792128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12693991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484 + ... + 5252.

Almost surely, 2^12693992 is an apocalyptic number.

It is an amenable number.

12693992 is a deficient number, since it is larger than the sum of its proper divisors (11170108).

12693992 is a wasteful number, since it uses less digits than its factorization.

12693992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196 (or 4192 counting only the distinct ones).

The product of its digits is 52488, while the sum is 41.

The square root of 12693992 is about 3562.8628937976. The cubic root of 12693992 is about 233.2738587647.

The spelling of 12693992 in words is "twelve million, six hundred ninety-three thousand, nine hundred ninety-two".