12622989 has 4 divisors (see below), whose sum is σ = 16830656. Its totient is φ = 8415324.

The previous prime is 12622979. The next prime is 12622997. The reversal of 12622989 is 98922621.

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 not a de Polignac number, because 12622989 - 2¹⁶ = 12557453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12622949) 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, 2103829 + ... + 2103834.

It is an arithmetic number, because the mean of its divisors is an integer number (4207664).

Almost surely, 2^12622989 is an apocalyptic number.

It is an amenable number.

12622989 is a deficient number, since it is larger than the sum of its proper divisors (4207667).

12622989 is an equidigital number, since it uses as much as digits as its factorization.

12622989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207666.

The product of its digits is 31104, while the sum is 39.

The square root of 12622989 is about 3552.8846026855. The cubic root of 12622989 is about 232.8381113725.

The spelling of 12622989 in words is "twelve million, six hundred twenty-two thousand, nine hundred eighty-nine".