22284913 has 4 divisors (see below), whose sum is σ = 25468480. Its totient is φ = 19101348.

The previous prime is 22284893. The next prime is 22284923. The reversal of 22284913 is 31948222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22284913 - 2⁵ = 22284881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22284923) 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, 1591773 + ... + 1591786.

It is an arithmetic number, because the mean of its divisors is an integer number (6367120).

Almost surely, 2^22284913 is an apocalyptic number.

It is an amenable number.

22284913 is a deficient number, since it is larger than the sum of its proper divisors (3183567).

22284913 is an equidigital number, since it uses as much as digits as its factorization.

22284913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183566.

The product of its digits is 6912, while the sum is 31.

The square root of 22284913 is about 4720.6898860230. The cubic root of 22284913 is about 281.4083507949.

The spelling of 22284913 in words is "twenty-two million, two hundred eighty-four thousand, nine hundred thirteen".