23887573 has 2 divisors, whose sum is σ = 23887574. Its totient is φ = 23887572.

The previous prime is 23887519. The next prime is 23887583. The reversal of 23887573 is 37578832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12341169 + 11546404 = 3513^2 + 3398^2 .

It is a cyclic number.

It is not a de Polignac number, because 23887573 - 2²¹ = 21790421 is a prime.

It is a super-2 number, since 2×23887573² = 1141232287660658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23887583) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11943786 + 11943787.

It is an arithmetic number, because the mean of its divisors is an integer number (11943787).

Almost surely, 2^23887573 is an apocalyptic number.

It is an amenable number.

23887573 is a deficient number, since it is larger than the sum of its proper divisors (1).

23887573 is an equidigital number, since it uses as much as digits as its factorization.

23887573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 23887573 is about 4887.4914833685. The cubic root of 23887573 is about 287.9987983810.

The spelling of 23887573 in words is "twenty-three million, eight hundred eighty-seven thousand, five hundred seventy-three".