23582213 has 4 divisors (see below), whose sum is σ = 24969420. Its totient is φ = 22195008.

The previous prime is 23582171. The next prime is 23582231. The reversal of 23582213 is 31228532.

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 19509889 + 4072324 = 4417^2 + 2018^2 .

It is a cyclic number.

It is not a de Polignac number, because 23582213 - 2¹⁰ = 23581189 is a prime.

It is a super-2 number, since 2×23582213² = 1112241539954738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23582233) 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 in 3 ways as a sum of consecutive naturals, for example, 693578 + ... + 693611.

It is an arithmetic number, because the mean of its divisors is an integer number (6242355).

Almost surely, 2^23582213 is an apocalyptic number.

It is an amenable number.

23582213 is a deficient number, since it is larger than the sum of its proper divisors (1387207).

23582213 is a wasteful number, since it uses less digits than its factorization.

23582213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387206.

The product of its digits is 2880, while the sum is 26.

The square root of 23582213 is about 4856.1520775198. The cubic root of 23582213 is about 286.7663482137.

The spelling of 23582213 in words is "twenty-three million, five hundred eighty-two thousand, two hundred thirteen".