861346 has 12 divisors (see below), whose sum is σ = 1364742. Its totient is φ = 407664.

The previous prime is 861317. The next prime is 861347. The reversal of 861346 is 643168.

It can be written as a sum of positive squares in only one way, i.e., 731025 + 130321 = 855^2 + 361^2 .

It is a d-powerful number, because it can be written as 8⁵ + 6⁷ + 3⁸ + 1 + 4⁹ + 6⁷ .

It is not an unprimeable number, because it can be changed into a prime (861347) by changing a digit.

861346 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126 + ... + 1318.

2⁸⁶¹³⁴⁶ is an apocalyptic number.

861346 is a deficient number, since it is larger than the sum of its proper divisors (503396).

861346 is a wasteful number, since it uses less digits than its factorization.

861346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233 (or 1214 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 861346 is about 928.0872803783. The cubic root of 861346 is about 95.1464408148.

The spelling of 861346 in words is "eight hundred sixty-one thousand, three hundred forty-six".