820088 has 16 divisors (see below), whose sum is σ = 1604880. Its totient is φ = 392128.

The previous prime is 820073. The next prime is 820093. The reversal of 820088 is 880028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2045 + ... + 2412.

It is an arithmetic number, because the mean of its divisors is an integer number (100305).

2⁸²⁰⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

820088 is a deficient number, since it is larger than the sum of its proper divisors (784792).

820088 is a wasteful number, since it uses less digits than its factorization.

820088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486 (or 4482 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 820088 is about 905.5871023817. The cubic root of 820088 is about 93.6023643691.

The spelling of 820088 in words is "eight hundred twenty thousand, eighty-eight".