22847213 has 4 divisors (see below), whose sum is σ = 23000700. Its totient is φ = 22693728.

The previous prime is 22847207. The next prime is 22847239. The reversal of 22847213 is 31274822.

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 4072324 + 18774889 = 2018^2 + 4333^2 .

It is a cyclic number.

It is not a de Polignac number, because 22847213 - 2²⁴ = 6069997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22847203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76520 + ... + 76817.

It is an arithmetic number, because the mean of its divisors is an integer number (5750175).

Almost surely, 2^22847213 is an apocalyptic number.

It is an amenable number.

22847213 is a deficient number, since it is larger than the sum of its proper divisors (153487).

22847213 is a wasteful number, since it uses less digits than its factorization.

22847213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153486.

The product of its digits is 5376, while the sum is 29.

The square root of 22847213 is about 4779.8758352074. The cubic root of 22847213 is about 283.7555797256.

The spelling of 22847213 in words is "twenty-two million, eight hundred forty-seven thousand, two hundred thirteen".