820054 has 8 divisors (see below), whose sum is σ = 1234008. Its totient is φ = 408720.

The previous prime is 820051. The next prime is 820067. The reversal of 820054 is 450028.

It is a happy number.

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

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649 + ... + 1435.

It is an arithmetic number, because the mean of its divisors is an integer number (154251).

2⁸²⁰⁰⁵⁴ is an apocalyptic number.

820054 is a deficient number, since it is larger than the sum of its proper divisors (413954).

820054 is a wasteful number, since it uses less digits than its factorization.

820054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 820054 is about 905.5683298349. The cubic root of 820054 is about 93.6010707989.

The spelling of 820054 in words is "eight hundred twenty thousand, fifty-four".