861226 has 8 divisors (see below), whose sum is σ = 1298304. Its totient is φ = 428460.

The previous prime is 861221. The next prime is 861239. The reversal of 861226 is 622168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 861226.

It is not an unprimeable number, because it can be changed into a prime (861221) 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, 520 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (162288).

2⁸⁶¹²²⁶ is an apocalyptic number.

861226 is a deficient number, since it is larger than the sum of its proper divisors (437078).

861226 is a wasteful number, since it uses less digits than its factorization.

861226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156.

The product of its digits is 1152, while the sum is 25.

The square root of 861226 is about 928.0226290344. The cubic root of 861226 is about 95.1420221092.

The spelling of 861226 in words is "eight hundred sixty-one thousand, two hundred twenty-six".