861058 has 8 divisors (see below), whose sum is σ = 1409040. Its totient is φ = 391380.

The previous prime is 861053. The next prime is 861059. The reversal of 861058 is 850168.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (861053) 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, 19548 + ... + 19591.

It is an arithmetic number, because the mean of its divisors is an integer number (176130).

2⁸⁶¹⁰⁵⁸ is an apocalyptic number.

861058 is a deficient number, since it is larger than the sum of its proper divisors (547982).

861058 is a wasteful number, since it uses less digits than its factorization.

861058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39152.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 861058 is about 927.9321095856. The cubic root of 861058 is about 95.1358352317.

It can be divided in two parts, 8610 and 58, that added together give a palindrome (8668).

The spelling of 861058 in words is "eight hundred sixty-one thousand, fifty-eight".