23376989 has 4 divisors (see below), whose sum is σ = 24752124. Its totient is φ = 22001856.

The previous prime is 23376961. The next prime is 23377019. The reversal of 23376989 is 98967332.

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 12020089 + 11356900 = 3467^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 23376989 - 2¹² = 23372893 is a prime.

It is a super-2 number, since 2×23376989² = 1092967229412242, 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 (23376919) 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, 687542 + ... + 687575.

It is an arithmetic number, because the mean of its divisors is an integer number (6188031).

Almost surely, 2^23376989 is an apocalyptic number.

It is an amenable number.

23376989 is a deficient number, since it is larger than the sum of its proper divisors (1375135).

23376989 is a wasteful number, since it uses less digits than its factorization.

23376989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375134.

The product of its digits is 489888, while the sum is 47.

The square root of 23376989 is about 4834.9755945609. The cubic root of 23376989 is about 285.9320628566.

The spelling of 23376989 in words is "twenty-three million, three hundred seventy-six thousand, nine hundred eighty-nine".