23735869 has 2 divisors, whose sum is σ = 23735870. Its totient is φ = 23735868.

The previous prime is 23735851. The next prime is 23735879. The reversal of 23735869 is 96853732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18619225 + 5116644 = 4315^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 23735869 - 2⁵ = 23735837 is a prime.

It is a super-2 number, since 2×23735869² = 1126782954370322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23735809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11867934 + 11867935.

It is an arithmetic number, because the mean of its divisors is an integer number (11867935).

Almost surely, 2^23735869 is an apocalyptic number.

It is an amenable number.

23735869 is a deficient number, since it is larger than the sum of its proper divisors (1).

23735869 is an equidigital number, since it uses as much as digits as its factorization.

23735869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 23735869 is about 4871.9471466755. The cubic root of 23735869 is about 287.3878337495.

The spelling of 23735869 in words is "twenty-three million, seven hundred thirty-five thousand, eight hundred sixty-nine".