23490869 has 2 divisors, whose sum is σ = 23490870. Its totient is φ = 23490868.

The previous prime is 23490851. The next prime is 23490877. The reversal of 23490869 is 96809432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13410244 + 10080625 = 3662^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 23490869 - 2¹² = 23486773 is a prime.

It is a super-2 number, since 2×23490869² = 1103641852750322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23490469) 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, 11745434 + 11745435.

It is an arithmetic number, because the mean of its divisors is an integer number (11745435).

Almost surely, 2^23490869 is an apocalyptic number.

It is an amenable number.

23490869 is a deficient number, since it is larger than the sum of its proper divisors (1).

23490869 is an equidigital number, since it uses as much as digits as its factorization.

23490869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 23490869 is about 4846.7379751746. The cubic root of 23490869 is about 286.3956128779.

The spelling of 23490869 in words is "twenty-three million, four hundred ninety thousand, eight hundred sixty-nine".