835438 has 4 divisors (see below), whose sum is σ = 1253160. Its totient is φ = 417718.

The previous prime is 835427. The next prime is 835441. The reversal of 835438 is 834538.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208858 + ... + 208861.

It is an arithmetic number, because the mean of its divisors is an integer number (313290).

2⁸³⁵⁴³⁸ is an apocalyptic number.

835438 is a deficient number, since it is larger than the sum of its proper divisors (417722).

835438 is a wasteful number, since it uses less digits than its factorization.

835438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417721.

The product of its digits is 11520, while the sum is 31.

The square root of 835438 is about 914.0229756412. The cubic root of 835438 is about 94.1827589731.

Subtracting from 835438 its reverse (834538), we obtain a square (900 = 30²).

The spelling of 835438 in words is "eight hundred thirty-five thousand, four hundred thirty-eight".