226791685 has 16 divisors (see below), whose sum is σ = 285463296. Its totient is φ = 172767168.

The previous prime is 226791673. The next prime is 226791703. The reversal of 226791685 is 586197622.

It is a 3-Lehmer number, since φ(226791685) divides (226791685-1)³.

It is a cyclic number.

It is not a de Polignac number, because 226791685 - 2¹³ = 226783493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4347 + ... + 21736.

It is an arithmetic number, because the mean of its divisors is an integer number (17841456).

It is a Poulet number, since it divides 2^226791684-1.

Almost surely, 2^226791685 is an apocalyptic number.

226791685 is the 8695-th octagonal number.

It is an amenable number.

226791685 is a deficient number, since it is larger than the sum of its proper divisors (58671611).

226791685 is a wasteful number, since it uses less digits than its factorization.

226791685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26172.

The product of its digits is 362880, while the sum is 46.

The square root of 226791685 is about 15059.6044104751. The cubic root of 226791685 is about 609.8303613208.

It can be divided in two parts, 226 and 791685, that added together give a triangular number (791911 = T₁₂₅₈).

The spelling of 226791685 in words is "two hundred twenty-six million, seven hundred ninety-one thousand, six hundred eighty-five".