22785097 has 4 divisors (see below), whose sum is σ = 23570820. Its totient is φ = 21999376.

The previous prime is 22785079. The next prime is 22785109. The reversal of 22785097 is 79058722.

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 13366336 + 9418761 = 3656^2 + 3069^2 .

It is a cyclic number.

It is not a de Polignac number, because 22785097 - 2¹¹ = 22783049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22785067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392818 + ... + 392875.

It is an arithmetic number, because the mean of its divisors is an integer number (5892705).

Almost surely, 2^22785097 is an apocalyptic number.

It is an amenable number.

22785097 is a deficient number, since it is larger than the sum of its proper divisors (785723).

22785097 is an equidigital number, since it uses as much as digits as its factorization.

22785097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785722.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 22785097 is about 4773.3737544843. The cubic root of 22785097 is about 283.4981922543.

The spelling of 22785097 in words is "twenty-two million, seven hundred eighty-five thousand, ninety-seven".