842765 has 24 divisors (see below), whose sum is σ = 1276800. Its totient is φ = 522720.

The previous prime is 842759. The next prime is 842767. The reversal of 842765 is 567248.

842765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 842765 - 2⁶ = 842701 is a prime.

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 842765.

It is not an unprimeable number, because it can be changed into a prime (842767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4136 + ... + 4334.

It is an arithmetic number, because the mean of its divisors is an integer number (53200).

2⁸⁴²⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

842765 is a deficient number, since it is larger than the sum of its proper divisors (434035).

842765 is a wasteful number, since it uses less digits than its factorization.

842765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 222 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 842765 is about 918.0223308831. The cubic root of 842765 is about 94.4572933947.

The spelling of 842765 in words is "eight hundred forty-two thousand, seven hundred sixty-five".