834406 has 4 divisors (see below), whose sum is σ = 1251612. Its totient is φ = 417202.

The previous prime is 834367. The next prime is 834433. The reversal of 834406 is 604438.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

834406 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, 208600 + ... + 208603.

It is an arithmetic number, because the mean of its divisors is an integer number (312903).

2⁸³⁴⁴⁰⁶ is an apocalyptic number.

834406 is a deficient number, since it is larger than the sum of its proper divisors (417206).

834406 is a wasteful number, since it uses less digits than its factorization.

834406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417205.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 834406 is about 913.4582639617. The cubic root of 834406 is about 94.1439622954.

It can be divided in two parts, 83 and 4406, that added together give a square (4489 = 67²).

The spelling of 834406 in words is "eight hundred thirty-four thousand, four hundred six".