22093217 has 4 divisors (see below), whose sum is σ = 23392836. Its totient is φ = 20793600.

The previous prime is 22093213. The next prime is 22093241. The reversal of 22093217 is 71239022.

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 20784481 + 1308736 = 4559^2 + 1144^2 .

It is a cyclic number.

It is not a de Polignac number, because 22093217 - 2² = 22093213 is a prime.

It is a super-2 number, since 2×22093217² = 976220474818178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22093213) 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 in 3 ways as a sum of consecutive naturals, for example, 649784 + ... + 649817.

It is an arithmetic number, because the mean of its divisors is an integer number (5848209).

Almost surely, 2^22093217 is an apocalyptic number.

It is an amenable number.

22093217 is a deficient number, since it is larger than the sum of its proper divisors (1299619).

22093217 is a wasteful number, since it uses less digits than its factorization.

22093217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299618.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 22093217 is about 4700.3422215834. The cubic root of 22093217 is about 280.5991295143.

It can be divided in two parts, 220932 and 17, that multiplied together give a square (3755844 = 1938²).

The spelling of 22093217 in words is "twenty-two million, ninety-three thousand, two hundred seventeen".