12717396 has 36 divisors (see below), whose sum is σ = 32258772. Its totient is φ = 4224384.

The previous prime is 12717361. The next prime is 12717407. The reversal of 12717396 is 69371721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 7128900 = 2364^2 + 2670^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×12717396² = 323464322041632, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12717396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16066 + ... + 16838.

It is an arithmetic number, because the mean of its divisors is an integer number (896077).

It is a vampire number, since it can be written as 1371 ⋅ 9276 (with its own digits).

Almost surely, 2^12717396 is an apocalyptic number.

It is an amenable number.

12717396 is an abundant number, since it is smaller than the sum of its proper divisors (19541376).

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

12717396 is a wasteful number, since it uses less digits than its factorization.

12717396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1235 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 12717396 is about 3566.1458186675. The cubic root of 12717396 is about 233.4171336188.

The spelling of 12717396 in words is "twelve million, seven hundred seventeen thousand, three hundred ninety-six".