22397093 has 4 divisors (see below), whose sum is σ = 22424940. Its totient is φ = 22369248.

The previous prime is 22397087. The next prime is 22397107. The reversal of 22397093 is 39079322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39079322 = 2 ⋅19539661.

It can be written as a sum of positive squares in 2 ways, for example, as 18645124 + 3751969 = 4318^2 + 1937^2 .

It is a cyclic number.

It is not a de Polignac number, because 22397093 - 2²⁰ = 21348517 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 (22397003) 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, 12680 + ... + 14337.

It is an arithmetic number, because the mean of its divisors is an integer number (5606235).

Almost surely, 2^22397093 is an apocalyptic number.

It is an amenable number.

22397093 is a deficient number, since it is larger than the sum of its proper divisors (27847).

22397093 is an equidigital number, since it uses as much as digits as its factorization.

22397093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27846.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 22397093 is about 4732.5567085879. The cubic root of 22397093 is about 281.8797544113.

The spelling of 22397093 in words is "twenty-two million, three hundred ninety-seven thousand, ninety-three".