23020687 has 2 divisors, whose sum is σ = 23020688. Its totient is φ = 23020686.

The previous prime is 23020681. The next prime is 23020727. The reversal of 23020687 is 78602032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23020687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23020681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510343 + 11510344.

It is an arithmetic number, because the mean of its divisors is an integer number (11510344).

Almost surely, 2^23020687 is an apocalyptic number.

23020687 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020687 is an equidigital number, since it uses as much as digits as its factorization.

23020687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 23020687 is about 4797.9878074043. The cubic root of 23020687 is about 284.4719348646.

The spelling of 23020687 in words is "twenty-three million, twenty thousand, six hundred eighty-seven".