23011687 has 2 divisors, whose sum is σ = 23011688. Its totient is φ = 23011686.

The previous prime is 23011663. The next prime is 23011691. The reversal of 23011687 is 78611032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23011687 - 2⁷ = 23011559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23011627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505843 + 11505844.

It is an arithmetic number, because the mean of its divisors is an integer number (11505844).

Almost surely, 2^23011687 is an apocalyptic number.

23011687 is a deficient number, since it is larger than the sum of its proper divisors (1).

23011687 is an equidigital number, since it uses as much as digits as its factorization.

23011687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 23011687 is about 4797.0498225472. The cubic root of 23011687 is about 284.4348583410.

The spelling of 23011687 in words is "twenty-three million, eleven thousand, six hundred eighty-seven".