12508873 has 6 divisors (see below), whose sum is σ = 13545294. Its totient is φ = 11546496.

The previous prime is 12508823. The next prime is 12508879. The reversal of 12508873 is 37880521.

It can be written as a sum of positive squares in 3 ways, for example, as 1138489 + 11370384 = 1067^2 + 3372^2 .

It is not a de Polignac number, because 12508873 - 2⁹ = 12508361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12508879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36840 + ... + 37177.

It is an arithmetic number, because the mean of its divisors is an integer number (2257549).

Almost surely, 2^12508873 is an apocalyptic number.

12508873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12508873 is a deficient number, since it is larger than the sum of its proper divisors (1036421).

12508873 is an equidigital number, since it uses as much as digits as its factorization.

12508873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74043 (or 74030 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 12508873 is about 3536.7885150232. The cubic root of 12508873 is about 232.1343417829.

The spelling of 12508873 in words is "twelve million, five hundred eight thousand, eight hundred seventy-three".