12863605 has 16 divisors (see below), whose sum is σ = 16372224. Its totient is φ = 9685440.

The previous prime is 12863573. The next prime is 12863623. The reversal of 12863605 is 50636821.

It is not a de Polignac number, because 12863605 - 2⁵ = 12863573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4614 + ... + 6856.

It is an arithmetic number, because the mean of its divisors is an integer number (1023264).

Almost surely, 2^12863605 is an apocalyptic number.

It is an amenable number.

12863605 is a deficient number, since it is larger than the sum of its proper divisors (3508619).

12863605 is a wasteful number, since it uses less digits than its factorization.

12863605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12863605 is about 3586.5868175746. The cubic root of 12863605 is about 234.3082418460.

The spelling of 12863605 in words is "twelve million, eight hundred sixty-three thousand, six hundred five".