23780851 has 2 divisors, whose sum is σ = 23780852. Its totient is φ = 23780850.

The previous prime is 23780831. The next prime is 23780879. The reversal of 23780851 is 15808732.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23780851 - 2¹³ = 23772659 is a prime.

It is not a weakly prime, because it can be changed into another prime (23780821) 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, 11890425 + 11890426.

It is an arithmetic number, because the mean of its divisors is an integer number (11890426).

Almost surely, 2^23780851 is an apocalyptic number.

23780851 is a deficient number, since it is larger than the sum of its proper divisors (1).

23780851 is an equidigital number, since it uses as much as digits as its factorization.

23780851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 23780851 is about 4876.5613909803. The cubic root of 23780851 is about 287.5692627074.

The spelling of 23780851 in words is "twenty-three million, seven hundred eighty thousand, eight hundred fifty-one".