23679389 has 4 divisors (see below), whose sum is σ = 23755356. Its totient is φ = 23603424.

The previous prime is 23679379. The next prime is 23679433. The reversal of 23679389 is 98397632.

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 4687225 + 18992164 = 2165^2 + 4358^2 .

It is a cyclic number.

It is not a de Polignac number, because 23679389 - 2¹² = 23675293 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 (23679379) 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, 37514 + ... + 38139.

It is an arithmetic number, because the mean of its divisors is an integer number (5938839).

Almost surely, 2^23679389 is an apocalyptic number.

It is an amenable number.

23679389 is a deficient number, since it is larger than the sum of its proper divisors (75967).

23679389 is an equidigital number, since it uses as much as digits as its factorization.

23679389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75966.

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

The square root of 23679389 is about 4866.1472439703. The cubic root of 23679389 is about 287.1597042404.

The spelling of 23679389 in words is "twenty-three million, six hundred seventy-nine thousand, three hundred eighty-nine".