865374 has 16 divisors (see below), whose sum is σ = 1822080. Its totient is φ = 273240.

The previous prime is 865363. The next prime is 865379. The reversal of 865374 is 473568.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 865374.

It is not an unprimeable number, because it can be changed into a prime (865379) by changing a digit.

865374 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3682 + ... + 3909.

It is an arithmetic number, because the mean of its divisors is an integer number (113880).

2⁸⁶⁵³⁷⁴ is an apocalyptic number.

865374 is an abundant number, since it is smaller than the sum of its proper divisors (956706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865374 is a wasteful number, since it uses less digits than its factorization.

865374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615.

The product of its digits is 20160, while the sum is 33.

The square root of 865374 is about 930.2548038038. The cubic root of 865374 is about 95.2945245507.

It can be divided in two parts, 86 and 5374, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 865374 in words is "eight hundred sixty-five thousand, three hundred seventy-four".