820914 has 24 divisors (see below), whose sum is σ = 1737360. Its totient is φ = 258552.

The previous prime is 820909. The next prime is 820921. The reversal of 820914 is 419028.

It is a plaindrome in base 15.

It is an unprimeable number.

820914 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 11 ways as a sum of consecutive naturals, for example, 1977 + ... + 2355.

It is an arithmetic number, because the mean of its divisors is an integer number (72390).

2⁸²⁰⁹¹⁴ is an apocalyptic number.

820914 is an abundant number, since it is smaller than the sum of its proper divisors (916446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

820914 is a wasteful number, since it uses less digits than its factorization.

820914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 820914 is about 906.0430453350. The cubic root of 820914 is about 93.6337795383.

The spelling of 820914 in words is "eight hundred twenty thousand, nine hundred fourteen".