23319487 has 2 divisors, whose sum is σ = 23319488. Its totient is φ = 23319486.

The previous prime is 23319467. The next prime is 23319503. The reversal of 23319487 is 78491332.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23319487 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 (23319407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11659743 + 11659744.

It is an arithmetic number, because the mean of its divisors is an integer number (11659744).

Almost surely, 2^23319487 is an apocalyptic number.

23319487 is a deficient number, since it is larger than the sum of its proper divisors (1).

23319487 is an equidigital number, since it uses as much as digits as its factorization.

23319487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 23319487 is about 4829.0254710449. The cubic root of 23319487 is about 285.6974280649.

The spelling of 23319487 in words is "twenty-three million, three hundred nineteen thousand, four hundred eighty-seven".