23090761 has 2 divisors, whose sum is σ = 23090762. Its totient is φ = 23090760.

The previous prime is 23090737. The next prime is 23090791. The reversal of 23090761 is 16709032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 585225 = 4744^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 23090761 - 2⁵ = 23090729 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (23090791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11545380 + 11545381.

It is an arithmetic number, because the mean of its divisors is an integer number (11545381).

Almost surely, 2^23090761 is an apocalyptic number.

It is an amenable number.

23090761 is a deficient number, since it is larger than the sum of its proper divisors (1).

23090761 is an equidigital number, since it uses as much as digits as its factorization.

23090761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 23090761 is about 4805.2846949999. The cubic root of 23090761 is about 284.7602826786.

Adding to 23090761 its reverse (16709032), we get a palindrome (39799793).

The spelling of 23090761 in words is "twenty-three million, ninety thousand, seven hundred sixty-one".