12993725 has 12 divisors (see below), whose sum is σ = 16201716. Its totient is φ = 10337280.

The previous prime is 12993719. The next prime is 12993727. The reversal of 12993725 is 52739921.

12993725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1304164 + 11689561 = 1142^2 + 3419^2 .

It is not a de Polignac number, because 12993725 - 2¹² = 12989629 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12993727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3479 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (1350143).

Almost surely, 2^12993725 is an apocalyptic number.

It is an amenable number.

12993725 is a deficient number, since it is larger than the sum of its proper divisors (3207991).

12993725 is a wasteful number, since it uses less digits than its factorization.

12993725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896 (or 2891 counting only the distinct ones).

The product of its digits is 34020, while the sum is 38.

The square root of 12993725 is about 3604.6809844978. The cubic root of 12993725 is about 235.0956303111.

The spelling of 12993725 in words is "twelve million, nine hundred ninety-three thousand, seven hundred twenty-five".