22867213 has 4 divisors (see below), whose sum is σ = 22877308. Its totient is φ = 22857120.

The previous prime is 22867189. The next prime is 22867277. The reversal of 22867213 is 31276822.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31276822 = 2 ⋅15638411.

It can be written as a sum of positive squares in 2 ways, for example, as 15539364 + 7327849 = 3942^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 22867213 - 2¹³ = 22859021 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 (22867513) 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, 103 + ... + 6763.

It is an arithmetic number, because the mean of its divisors is an integer number (5719327).

Almost surely, 2^22867213 is an apocalyptic number.

It is an amenable number.

22867213 is a deficient number, since it is larger than the sum of its proper divisors (10095).

22867213 is an equidigital number, since it uses as much as digits as its factorization.

22867213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094.

The product of its digits is 8064, while the sum is 31.

The square root of 22867213 is about 4781.9674821144. The cubic root of 22867213 is about 283.8383535915.

The spelling of 22867213 in words is "twenty-two million, eight hundred sixty-seven thousand, two hundred thirteen".