12697704 has 24 divisors (see below), whose sum is σ = 34389810. Its totient is φ = 4232544.

The previous prime is 12697703. The next prime is 12697717. The reversal of 12697704 is 40779621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11492100 + 1205604 = 3390^2 + 1098^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12697704² = 322463373743232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12697703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88107 + ... + 88250.

Almost surely, 2^12697704 is an apocalyptic number.

It is an amenable number.

12697704 is an abundant number, since it is smaller than the sum of its proper divisors (21692106).

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

12697704 is a wasteful number, since it uses less digits than its factorization.

12697704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176369 (or 176362 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 12697704 is about 3563.3837851121. The cubic root of 12697704 is about 233.2965946693.

The spelling of 12697704 in words is "twelve million, six hundred ninety-seven thousand, seven hundred four".