23277223 has 4 divisors (see below), whose sum is σ = 24502360. Its totient is φ = 22052088.

The previous prime is 23277193. The next prime is 23277239. The reversal of 23277223 is 32277232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23277223 is a prime.

It is a super-2 number, since 2×23277223² = 1083658221183458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23277191 and 23277200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23277263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612540 + ... + 612577.

It is an arithmetic number, because the mean of its divisors is an integer number (6125590).

Almost surely, 2^23277223 is an apocalyptic number.

23277223 is a deficient number, since it is larger than the sum of its proper divisors (1225137).

23277223 is a wasteful number, since it uses less digits than its factorization.

23277223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225136.

The product of its digits is 7056, while the sum is 28.

The square root of 23277223 is about 4824.6474482598. The cubic root of 23277223 is about 285.5247253213.

Subtracting 23277223 from its reverse (32277232), we obtain a palindrome (9000009).

The spelling of 23277223 in words is "twenty-three million, two hundred seventy-seven thousand, two hundred twenty-three".