842774 has 8 divisors (see below), whose sum is σ = 1269480. Its totient is φ = 419616.

The previous prime is 842771. The next prime is 842791. The reversal of 842774 is 477248.

842774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 842774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842771) 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, 179 + ... + 1310.

It is an arithmetic number, because the mean of its divisors is an integer number (158685).

2⁸⁴²⁷⁷⁴ is an apocalyptic number.

842774 is a deficient number, since it is larger than the sum of its proper divisors (426706).

842774 is a wasteful number, since it uses less digits than its factorization.

842774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774.

The product of its digits is 12544, while the sum is 32.

The square root of 842774 is about 918.0272327115. The cubic root of 842774 is about 94.4576296342.

The spelling of 842774 in words is "eight hundred forty-two thousand, seven hundred seventy-four".