12563397 has 32 divisors (see below), whose sum is σ = 23208960. Its totient is φ = 6525360.

The previous prime is 12563393. The next prime is 12563413. The reversal of 12563397 is 79336521.

12563397 is a `hidden beast` number, since 1 + 2 + 563 + 3 + 97 = 666.

It is not a de Polignac number, because 12563397 - 2² = 12563393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12563393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 943 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (725280).

Almost surely, 2^12563397 is an apocalyptic number.

It is an amenable number.

12563397 is a deficient number, since it is larger than the sum of its proper divisors (10645563).

12563397 is a wasteful number, since it uses less digits than its factorization.

12563397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6070 (or 6064 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 12563397 is about 3544.4882564342. The cubic root of 12563397 is about 232.4711306506.

The spelling of 12563397 in words is "twelve million, five hundred sixty-three thousand, three hundred ninety-seven".