12579890 has 8 divisors (see below), whose sum is σ = 22643820. Its totient is φ = 5031952.

The previous prime is 12579887. The next prime is 12579899. The reversal of 12579890 is 9897521.

It can be written as a sum of positive squares in 2 ways, for example, as 12538681 + 41209 = 3541^2 + 203^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12579899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628985 + ... + 629004.

Almost surely, 2^12579890 is an apocalyptic number.

12579890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12579890 is a deficient number, since it is larger than the sum of its proper divisors (10063930).

12579890 is a wasteful number, since it uses less digits than its factorization.

12579890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257996.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 12579890 is about 3546.8140633532. The cubic root of 12579890 is about 232.5728141306.

The spelling of 12579890 in words is "twelve million, five hundred seventy-nine thousand, eight hundred ninety".