820698 has 16 divisors (see below), whose sum is σ = 1680096. Its totient is φ = 267120.

The previous prime is 820691. The next prime is 820711. The reversal of 820698 is 896028.

820698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (820691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (105006).

2⁸²⁰⁶⁹⁸ is an apocalyptic number.

820698 is an abundant number, since it is smaller than the sum of its proper divisors (859398).

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

820698 is a wasteful number, since it uses less digits than its factorization.

820698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 820698 is about 905.9238378583. The cubic root of 820698 is about 93.6255664691.

It can be divided in two parts, 8 and 20698, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 820698 in words is "eight hundred twenty thousand, six hundred ninety-eight".