23990671 has 2 divisors, whose sum is σ = 23990672. Its totient is φ = 23990670.

The previous prime is 23990669. The next prime is 23990677. The reversal of 23990671 is 17609932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23990671 - 2¹ = 23990669 is a prime.

Together with 23990669, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23990671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23990677) 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, 11995335 + 11995336.

It is an arithmetic number, because the mean of its divisors is an integer number (11995336).

Almost surely, 2^23990671 is an apocalyptic number.

23990671 is a deficient number, since it is larger than the sum of its proper divisors (1).

23990671 is an equidigital number, since it uses as much as digits as its factorization.

23990671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 23990671 is about 4898.0272559470. The cubic root of 23990671 is about 288.4125349228.

The spelling of 23990671 in words is "twenty-three million, nine hundred ninety thousand, six hundred seventy-one".