861874 has 8 divisors (see below), whose sum is σ = 1392300. Its totient is φ = 397776.

The previous prime is 861871. The next prime is 861877. The reversal of 861874 is 478168.

It is a happy number.

861874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (861871) and next prime (861877).

It can be written as a sum of positive squares in 2 ways, for example, as 837225 + 24649 = 915^2 + 157^2 .

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 (861871) 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, 16549 + ... + 16600.

2⁸⁶¹⁸⁷⁴ is an apocalyptic number.

861874 is a deficient number, since it is larger than the sum of its proper divisors (530426).

861874 is a wasteful number, since it uses less digits than its factorization.

861874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33164.

The product of its digits is 10752, while the sum is 34.

The square root of 861874 is about 928.3716928041. The cubic root of 861874 is about 95.1658782453.

The spelling of 861874 in words is "eight hundred sixty-one thousand, eight hundred seventy-four".