23770091 has 2 divisors, whose sum is σ = 23770092. Its totient is φ = 23770090.

The previous prime is 23770079. The next prime is 23770139. The reversal of 23770091 is 19007732.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23770091 - 2¹⁴ = 23753707 is a prime.

It is a super-2 number, since 2×23770091² = 1130034452296562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23770001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11885045 + 11885046.

It is an arithmetic number, because the mean of its divisors is an integer number (11885046).

Almost surely, 2^23770091 is an apocalyptic number.

23770091 is a deficient number, since it is larger than the sum of its proper divisors (1).

23770091 is an equidigital number, since it uses as much as digits as its factorization.

23770091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 23770091 is about 4875.4580297650. The cubic root of 23770091 is about 287.5258845000.

The spelling of 23770091 in words is "twenty-three million, seven hundred seventy thousand, ninety-one".