12372889 has 4 divisors (see below), whose sum is σ = 13100724. Its totient is φ = 11645056.

The previous prime is 12372887. The next prime is 12372907. The reversal of 12372889 is 98827321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9455625 + 2917264 = 3075^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 12372889 - 2¹ = 12372887 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12372887) 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, 363892 + ... + 363925.

It is an arithmetic number, because the mean of its divisors is an integer number (3275181).

Almost surely, 2^12372889 is an apocalyptic number.

It is an amenable number.

12372889 is a deficient number, since it is larger than the sum of its proper divisors (727835).

12372889 is an equidigital number, since it uses as much as digits as its factorization.

12372889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727834.

The product of its digits is 48384, while the sum is 40.

The square root of 12372889 is about 3517.5117625958. The cubic root of 12372889 is about 231.2900973567.

The spelling of 12372889 in words is "twelve million, three hundred seventy-two thousand, eight hundred eighty-nine".