820420958 has 16 divisors (see below), whose sum is σ = 1408459104. Its totient is φ = 351103200.

The previous prime is 820420897. The next prime is 820420981. The reversal of 820420958 is 859024028.

820420958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31985 + ... + 51612.

It is an arithmetic number, because the mean of its divisors is an integer number (88028694).

Almost surely, 2^820420958 is an apocalyptic number.

820420958 is a deficient number, since it is larger than the sum of its proper divisors (588038146).

820420958 is a wasteful number, since it uses less digits than its factorization.

820420958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84307.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 820420958 is about 28642.9914289691. The cubic root of 820420958 is about 936.1503026158.

The spelling of 820420958 in words is "eight hundred twenty million, four hundred twenty thousand, nine hundred fifty-eight".