23216869 has 4 divisors (see below), whose sum is σ = 25002796. Its totient is φ = 21430944.

The previous prime is 23216857. The next prime is 23216873. The reversal of 23216869 is 96861232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6300100 + 16916769 = 2510^2 + 4113^2 .

It is a cyclic number.

It is not a de Polignac number, because 23216869 - 2⁷ = 23216741 is a prime.

It is a super-2 number, since 2×23216869² = 1078046012326322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892944 + ... + 892969.

It is an arithmetic number, because the mean of its divisors is an integer number (6250699).

Almost surely, 2^23216869 is an apocalyptic number.

It is an amenable number.

23216869 is a deficient number, since it is larger than the sum of its proper divisors (1785927).

23216869 is a wasteful number, since it uses less digits than its factorization.

23216869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785926.

The product of its digits is 31104, while the sum is 37.

The square root of 23216869 is about 4818.3886310674. The cubic root of 23216869 is about 285.2777388933.

The spelling of 23216869 in words is "twenty-three million, two hundred sixteen thousand, eight hundred sixty-nine".