12580891 has 8 divisors (see below), whose sum is σ = 13046544. Its totient is φ = 12122880.

The previous prime is 12580879. The next prime is 12580903. The reversal of 12580891 is 19808521.

It is an interprime number because it is at equal distance from previous prime (12580879) and next prime (12580903).

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

It is not a de Polignac number, because 12580891 - 2⁵ = 12580859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12580871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1555 + ... + 5251.

It is an arithmetic number, because the mean of its divisors is an integer number (1630818).

Almost surely, 2^12580891 is an apocalyptic number.

12580891 is a deficient number, since it is larger than the sum of its proper divisors (465653).

12580891 is an equidigital number, since it uses as much as digits as its factorization.

12580891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 12580891 is about 3546.9551731027. The cubic root of 12580891 is about 232.5789826851.

The spelling of 12580891 in words is "twelve million, five hundred eighty thousand, eight hundred ninety-one".