861734 has 8 divisors (see below), whose sum is σ = 1296648. Its totient is φ = 429520.

The previous prime is 861733. The next prime is 861739. The reversal of 861734 is 437168.

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

It is a junction number, because it is equal to n+sod(n) for n = 861697 and 861706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861733) 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, 629 + ... + 1455.

It is an arithmetic number, because the mean of its divisors is an integer number (162081).

2⁸⁶¹⁷³⁴ is an apocalyptic number.

861734 is a deficient number, since it is larger than the sum of its proper divisors (434914).

861734 is a wasteful number, since it uses less digits than its factorization.

861734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its digits is 4032, while the sum is 29.

The square root of 861734 is about 928.2962889078. The cubic root of 861734 is about 95.1607251547.

The spelling of 861734 in words is "eight hundred sixty-one thousand, seven hundred thirty-four".