834742 has 4 divisors (see below), whose sum is σ = 1252116. Its totient is φ = 417370.

The previous prime is 834721. The next prime is 834761. The reversal of 834742 is 247438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247438 = 2 ⋅123719.

It is a self number, because there is not a number n which added to its sum of digits gives 834742.

It is a congruent number.

It is an unprimeable number.

834742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208684 + ... + 208687.

It is an arithmetic number, because the mean of its divisors is an integer number (313029).

2⁸³⁴⁷⁴² is an apocalyptic number.

834742 is a deficient number, since it is larger than the sum of its proper divisors (417374).

834742 is a wasteful number, since it uses less digits than its factorization.

834742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417373.

The product of its digits is 5376, while the sum is 28.

The square root of 834742 is about 913.6421618993. The cubic root of 834742 is about 94.1565972822.

It can be divided in two parts, 834 and 742, that multiplied together give a triangular number (618828 = T₁₁₁₂).

The spelling of 834742 in words is "eight hundred thirty-four thousand, seven hundred forty-two".