22227493 has 2 divisors, whose sum is σ = 22227494. Its totient is φ = 22227492.

The previous prime is 22227487. The next prime is 22227523. The reversal of 22227493 is 39472222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11716929 + 10510564 = 3423^2 + 3242^2 .

It is a cyclic number.

It is not a de Polignac number, because 22227493 - 2¹⁷ = 22096421 is a prime.

It is a super-2 number, since 2×22227493² = 988122890130098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22227433) 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 as a sum of consecutive naturals, namely, 11113746 + 11113747.

It is an arithmetic number, because the mean of its divisors is an integer number (11113747).

Almost surely, 2^22227493 is an apocalyptic number.

It is an amenable number.

22227493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22227493 is an equidigital number, since it uses as much as digits as its factorization.

22227493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 22227493 is about 4714.6042251710. The cubic root of 22227493 is about 281.1664477409.

The spelling of 22227493 in words is "twenty-two million, two hundred twenty-seven thousand, four hundred ninety-three".