12859090 has 16 divisors (see below), whose sum is σ = 23283288. Its totient is φ = 5113216.

The previous prime is 12859087. The next prime is 12859097. The reversal of 12859090 is 9095821.

It can be written as a sum of positive squares in 4 ways, for example, as 9979281 + 2879809 = 3159^2 + 1697^2 .

It is not an unprimeable number, because it can be changed into a prime (12859097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1987 + ... + 5446.

Almost surely, 2^12859090 is an apocalyptic number.

12859090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12859090 is a deficient number, since it is larger than the sum of its proper divisors (10424198).

12859090 is a wasteful number, since it uses less digits than its factorization.

12859090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7613.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 12859090 is about 3585.9573338231. The cubic root of 12859090 is about 234.2808253349.

The spelling of 12859090 in words is "twelve million, eight hundred fifty-nine thousand, ninety".