820376 has 8 divisors (see below), whose sum is σ = 1538220. Its totient is φ = 410184.

The previous prime is 820367. The next prime is 820399. The reversal of 820376 is 673028.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

820376 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51266 + ... + 51281.

2⁸²⁰³⁷⁶ is an apocalyptic number.

It is an amenable number.

820376 is a deficient number, since it is larger than the sum of its proper divisors (717844).

820376 is a wasteful number, since it uses less digits than its factorization.

820376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102553 (or 102549 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 820376 is about 905.7461012889. The cubic root of 820376 is about 93.6133202364.

The spelling of 820376 in words is "eight hundred twenty thousand, three hundred seventy-six".