23879545 has 4 divisors (see below), whose sum is σ = 28655460. Its totient is φ = 19103632.

The previous prime is 23879539. The next prime is 23879549. The reversal of 23879545 is 54597832.

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 12730624 + 11148921 = 3568^2 + 3339^2 .

It is a cyclic number.

It is not a de Polignac number, because 23879545 - 2¹⁹ = 23355257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23879549) 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, 2387950 + ... + 2387959.

It is an arithmetic number, because the mean of its divisors is an integer number (7163865).

Almost surely, 2^23879545 is an apocalyptic number.

It is an amenable number.

23879545 is a deficient number, since it is larger than the sum of its proper divisors (4775915).

23879545 is an equidigital number, since it uses as much as digits as its factorization.

23879545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775914.

The product of its digits is 302400, while the sum is 43.

The square root of 23879545 is about 4886.6701341507. The cubic root of 23879545 is about 287.9665317654.

The spelling of 23879545 in words is "twenty-three million, eight hundred seventy-nine thousand, five hundred forty-five".