823934 has 4 divisors (see below), whose sum is σ = 1235904. Its totient is φ = 411966.

The previous prime is 823913. The next prime is 823961. The reversal of 823934 is 439328.

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

It is a junction number, because it is equal to n+sod(n) for n = 823897 and 823906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205982 + ... + 205985.

It is an arithmetic number, because the mean of its divisors is an integer number (308976).

2⁸²³⁹³⁴ is an apocalyptic number.

823934 is a deficient number, since it is larger than the sum of its proper divisors (411970).

823934 is a wasteful number, since it uses less digits than its factorization.

823934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411969.

The product of its digits is 5184, while the sum is 29.

The square root of 823934 is about 907.7081028613. The cubic root of 823934 is about 93.7484598265.

It can be divided in two parts, 8239 and 34, that multiplied together give a triangular number (280126 = T₇₄₈).

The spelling of 823934 in words is "eight hundred twenty-three thousand, nine hundred thirty-four".