820934 has 8 divisors (see below), whose sum is σ = 1240680. Its totient is φ = 407376.

The previous prime is 820927. The next prime is 820957. The reversal of 820934 is 439028.

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

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

820934 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 in 3 ways as a sum of consecutive naturals, for example, 1199 + ... + 1754.

It is an arithmetic number, because the mean of its divisors is an integer number (155085).

2⁸²⁰⁹³⁴ is an apocalyptic number.

820934 is a deficient number, since it is larger than the sum of its proper divisors (419746).

820934 is a wasteful number, since it uses less digits than its factorization.

820934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 820934 is about 906.0540822710. The cubic root of 820934 is about 93.6345399348.

The spelling of 820934 in words is "eight hundred twenty thousand, nine hundred thirty-four".