12170089 has 4 divisors (see below), whose sum is σ = 12810640. Its totient is φ = 11529540.

The previous prime is 12170083. The next prime is 12170099. The reversal of 12170089 is 98007121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12170089 - 2⁵ = 12170057 is a prime.

It is a super-2 number, since 2×12170089² = 296222132535842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12170083) 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, 320247 + ... + 320284.

It is an arithmetic number, because the mean of its divisors is an integer number (3202660).

Almost surely, 2^12170089 is an apocalyptic number.

12170089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12170089 is a deficient number, since it is larger than the sum of its proper divisors (640551).

12170089 is an equidigital number, since it uses as much as digits as its factorization.

12170089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640550.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 12170089 is about 3488.5654644854. The cubic root of 12170089 is about 230.0194627512.

The spelling of 12170089 in words is "twelve million, one hundred seventy thousand, eighty-nine".