23943487 has 2 divisors, whose sum is σ = 23943488. Its totient is φ = 23943486.

The previous prime is 23943461. The next prime is 23943503. The reversal of 23943487 is 78434932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23943487 - 2¹¹ = 23941439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23943427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11971743 + 11971744.

It is an arithmetic number, because the mean of its divisors is an integer number (11971744).

Almost surely, 2^23943487 is an apocalyptic number.

23943487 is a deficient number, since it is larger than the sum of its proper divisors (1).

23943487 is an equidigital number, since it uses as much as digits as its factorization.

23943487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 23943487 is about 4893.2082522615. The cubic root of 23943487 is about 288.2233309838.

The spelling of 23943487 in words is "twenty-three million, nine hundred forty-three thousand, four hundred eighty-seven".