12457863 has 48 divisors (see below), whose sum is σ = 21340800. Its totient is φ = 6920640.

The previous prime is 12457859. The next prime is 12457871. The reversal of 12457863 is 36875421.

12457863 is a `hidden beast` number, since 1 + 24 + 578 + 63 = 666.

It is not a de Polignac number, because 12457863 - 2² = 12457859 is a prime.

Its product of digits (40320) is a multiple of the sum of its prime factors (252).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69508 + ... + 69686.

It is an arithmetic number, because the mean of its divisors is an integer number (444600).

Almost surely, 2^12457863 is an apocalyptic number.

12457863 is a deficient number, since it is larger than the sum of its proper divisors (8882937).

12457863 is a wasteful number, since it uses less digits than its factorization.

12457863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 249 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 12457863 is about 3529.5698038146. The cubic root of 12457863 is about 231.8183712696.

The spelling of 12457863 in words is "twelve million, four hundred fifty-seven thousand, eight hundred sixty-three".