23287879 has 2 divisors, whose sum is σ = 23287880. Its totient is φ = 23287878.

The previous prime is 23287867. The next prime is 23287903. The reversal of 23287879 is 97878232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23287879 - 2⁷ = 23287751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23287079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11643939 + 11643940.

It is an arithmetic number, because the mean of its divisors is an integer number (11643940).

Almost surely, 2^23287879 is an apocalyptic number.

23287879 is a deficient number, since it is larger than the sum of its proper divisors (1).

23287879 is an equidigital number, since it uses as much as digits as its factorization.

23287879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 23287879 is about 4825.7516512974. The cubic root of 23287879 is about 285.5682884690.

The spelling of 23287879 in words is "twenty-three million, two hundred eighty-seven thousand, eight hundred seventy-nine".