226861687 has 4 divisors (see below), whose sum is σ = 244312600. Its totient is φ = 209410776.

The previous prime is 226861639. The next prime is 226861699. The reversal of 226861687 is 786168622.

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

It is a cyclic number.

It is not a de Polignac number, because 226861687 - 2²⁷ = 92643959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226861637) 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, 8725437 + ... + 8725462.

It is an arithmetic number, because the mean of its divisors is an integer number (61078150).

Almost surely, 2^226861687 is an apocalyptic number.

226861687 is a deficient number, since it is larger than the sum of its proper divisors (17450913).

226861687 is a wasteful number, since it uses less digits than its factorization.

226861687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17450912.

The product of its digits is 387072, while the sum is 46.

The square root of 226861687 is about 15061.9283957931. The cubic root of 226861687 is about 609.8930987084.

The spelling of 226861687 in words is "two hundred twenty-six million, eight hundred sixty-one thousand, six hundred eighty-seven".