23477189 has 2 divisors, whose sum is σ = 23477190. Its totient is φ = 23477188.

The previous prime is 23477177. The next prime is 23477197. The reversal of 23477189 is 98177432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21996100 + 1481089 = 4690^2 + 1217^2 .

It is a cyclic number.

It is not a de Polignac number, because 23477189 - 2⁴ = 23477173 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23477149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11738594 + 11738595.

It is an arithmetic number, because the mean of its divisors is an integer number (11738595).

Almost surely, 2^23477189 is an apocalyptic number.

It is an amenable number.

23477189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23477189 is an equidigital number, since it uses as much as digits as its factorization.

23477189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 23477189 is about 4845.3265111858. The cubic root of 23477189 is about 286.3400075452.

The spelling of 23477189 in words is "twenty-three million, four hundred seventy-seven thousand, one hundred eighty-nine".