23870491 has 2 divisors, whose sum is σ = 23870492. Its totient is φ = 23870490.

The previous prime is 23870471. The next prime is 23870503. The reversal of 23870491 is 19407832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23870491 - 2¹¹ = 23868443 is a prime.

It is not a weakly prime, because it can be changed into another prime (23870411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11935245 + 11935246.

It is an arithmetic number, because the mean of its divisors is an integer number (11935246).

Almost surely, 2^23870491 is an apocalyptic number.

23870491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23870491 is an equidigital number, since it uses as much as digits as its factorization.

23870491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 23870491 is about 4885.7436486169. The cubic root of 23870491 is about 287.9301327111.

The spelling of 23870491 in words is "twenty-three million, eight hundred seventy thousand, four hundred ninety-one".