23775487 has 2 divisors, whose sum is σ = 23775488. Its totient is φ = 23775486.

The previous prime is 23775461. The next prime is 23775511. The reversal of 23775487 is 78457732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23775487 - 2⁷ = 23775359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23775457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11887743 + 11887744.

It is an arithmetic number, because the mean of its divisors is an integer number (11887744).

Almost surely, 2^23775487 is an apocalyptic number.

23775487 is a deficient number, since it is larger than the sum of its proper divisors (1).

23775487 is an equidigital number, since it uses as much as digits as its factorization.

23775487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 329280, while the sum is 43.

The square root of 23775487 is about 4876.0113822673. The cubic root of 23775487 is about 287.5476397425.

The spelling of 23775487 in words is "twenty-three million, seven hundred seventy-five thousand, four hundred eighty-seven".