12863390 has 24 divisors (see below), whose sum is σ = 24601752. Its totient is φ = 4841600.

The previous prime is 12863377. The next prime is 12863393. The reversal of 12863390 is 9336821.

12863390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12863393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 665 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (1025073).

Almost surely, 2^12863390 is an apocalyptic number.

12863390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12863390 is a deficient number, since it is larger than the sum of its proper divisors (11738362).

12863390 is a wasteful number, since it uses less digits than its factorization.

12863390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 12863390 is about 3586.5568446631. The cubic root of 12863390 is about 234.3069364434.

The spelling of 12863390 in words is "twelve million, eight hundred sixty-three thousand, three hundred ninety".