226645697 has 4 divisors (see below), whose sum is σ = 226676436. Its totient is φ = 226614960.

The previous prime is 226645687. The next prime is 226645723. The reversal of 226645697 is 796546622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 796546622 = 2 ⋅398273311.

It can be written as a sum of positive squares in 2 ways, for example, as 14622976 + 212022721 = 3824^2 + 14561^2 .

It is a cyclic number.

It is not a de Polignac number, because 226645697 - 2⁶ = 226645633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226645637) 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, 3047 + ... + 21507.

It is an arithmetic number, because the mean of its divisors is an integer number (56669109).

Almost surely, 2^226645697 is an apocalyptic number.

It is an amenable number.

226645697 is a deficient number, since it is larger than the sum of its proper divisors (30739).

226645697 is a wasteful number, since it uses less digits than its factorization.

226645697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30738.

The product of its digits is 1088640, while the sum is 47.

The square root of 226645697 is about 15054.7566237386. The cubic root of 226645697 is about 609.6994820012.

The spelling of 226645697 in words is "two hundred twenty-six million, six hundred forty-five thousand, six hundred ninety-seven".