820979038 has 32 divisors (see below), whose sum is σ = 1394962560. Its totient is φ = 358952160.

The previous prime is 820979023. The next prime is 820979059. The reversal of 820979038 is 830979028.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178281 + ... + 182827.

It is an arithmetic number, because the mean of its divisors is an integer number (43592580).

Almost surely, 2^820979038 is an apocalyptic number.

820979038 is a deficient number, since it is larger than the sum of its proper divisors (573983522).

820979038 is a wasteful number, since it uses less digits than its factorization.

820979038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 820979038 is about 28652.7317720318. The cubic root of 820979038 is about 936.3625222648.

The spelling of 820979038 in words is "eight hundred twenty million, nine hundred seventy-nine thousand, thirty-eight".