23220065 has 8 divisors (see below), whose sum is σ = 30397248. Its totient is φ = 16887280.

The previous prime is 23220049. The next prime is 23220073. The reversal of 23220065 is 56002232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23220065 - 2⁴ = 23220049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211037 + ... + 211146.

It is an arithmetic number, because the mean of its divisors is an integer number (3799656).

Almost surely, 2^23220065 is an apocalyptic number.

It is an amenable number.

23220065 is a deficient number, since it is larger than the sum of its proper divisors (7177183).

23220065 is a wasteful number, since it uses less digits than its factorization.

23220065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422199.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23220065 is about 4818.7202657967. The cubic root of 23220065 is about 285.2908285972.

Adding to 23220065 its reverse (56002232), we get a palindrome (79222297).

The spelling of 23220065 in words is "twenty-three million, two hundred twenty thousand, sixty-five".