23400851 has 2 divisors, whose sum is σ = 23400852. Its totient is φ = 23400850.

The previous prime is 23400847. The next prime is 23400863. The reversal of 23400851 is 15800432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23400851 - 2² = 23400847 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23400451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700425 + 11700426.

It is an arithmetic number, because the mean of its divisors is an integer number (11700426).

Almost surely, 2^23400851 is an apocalyptic number.

23400851 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400851 is an equidigital number, since it uses as much as digits as its factorization.

23400851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23400851 is about 4837.4426094787. The cubic root of 23400851 is about 286.0293179067.

The spelling of 23400851 in words is "twenty-three million, four hundred thousand, eight hundred fifty-one".