22427065 has 4 divisors (see below), whose sum is σ = 26912484. Its totient is φ = 17941648.

The previous prime is 22427059. The next prime is 22427081. The reversal of 22427065 is 56072422.

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 6594624 + 15832441 = 2568^2 + 3979^2 .

It is a cyclic number.

It is not a de Polignac number, because 22427065 - 2¹³ = 22418873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242702 + ... + 2242711.

It is an arithmetic number, because the mean of its divisors is an integer number (6728121).

Almost surely, 2^22427065 is an apocalyptic number.

It is an amenable number.

22427065 is a deficient number, since it is larger than the sum of its proper divisors (4485419).

22427065 is an equidigital number, since it uses as much as digits as its factorization.

22427065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485418.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 22427065 is about 4735.7222258067. The cubic root of 22427065 is about 282.0054364091.

Adding to 22427065 its reverse (56072422), we get a palindrome (78499487).

The spelling of 22427065 in words is "twenty-two million, four hundred twenty-seven thousand, sixty-five".