23789409 has 32 divisors (see below), whose sum is σ = 39442176. Its totient is φ = 12441600.

The previous prime is 23789407. The next prime is 23789411. The reversal of 23789409 is 90498732.

It is an interprime number because it is at equal distance from previous prime (23789407) and next prime (23789411).

It is not a de Polignac number, because 23789409 - 2¹ = 23789407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23789407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12309 + ... + 14109.

It is an arithmetic number, because the mean of its divisors is an integer number (1232568).

Almost surely, 2^23789409 is an apocalyptic number.

It is an amenable number.

23789409 is a deficient number, since it is larger than the sum of its proper divisors (15652767).

23789409 is a wasteful number, since it uses less digits than its factorization.

23789409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 23789409 is about 4877.4387746029. The cubic root of 23789409 is about 287.6037543606.

The spelling of 23789409 in words is "twenty-three million, seven hundred eighty-nine thousand, four hundred nine".