226972769 has 4 divisors (see below), whose sum is σ = 227133696. Its totient is φ = 226811844.

The previous prime is 226972747. The next prime is 226972777. The reversal of 226972769 is 967279622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226972769 is a prime.

It is a super-2 number, since 2×226972769² = 103033275735054722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226972709) 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, 78329 + ... + 81174.

It is an arithmetic number, because the mean of its divisors is an integer number (56783424).

Almost surely, 2^226972769 is an apocalyptic number.

It is an amenable number.

226972769 is a deficient number, since it is larger than the sum of its proper divisors (160927).

226972769 is a wasteful number, since it uses less digits than its factorization.

226972769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160926.

The product of its digits is 1143072, while the sum is 50.

The square root of 226972769 is about 15065.6154537410. The cubic root of 226972769 is about 609.9926264450.

The spelling of 226972769 in words is "two hundred twenty-six million, nine hundred seventy-two thousand, seven hundred sixty-nine".