23606989 has 4 divisors (see below), whose sum is σ = 26979424. Its totient is φ = 20234556.

The previous prime is 23606977. The next prime is 23607013. The reversal of 23606989 is 98960632.

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 23606989 - 2⁹ = 23606477 is a prime.

It is a super-2 number, since 2×23606989² = 1114579859292242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23606929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686207 + ... + 1686220.

It is an arithmetic number, because the mean of its divisors is an integer number (6744856).

Almost surely, 2^23606989 is an apocalyptic number.

It is an amenable number.

23606989 is a deficient number, since it is larger than the sum of its proper divisors (3372435).

23606989 is an equidigital number, since it uses as much as digits as its factorization.

23606989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372434.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 23606989 is about 4858.7023987892. The cubic root of 23606989 is about 286.8667407751.

The spelling of 23606989 in words is "twenty-three million, six hundred six thousand, nine hundred eighty-nine".