820983094 has 4 divisors (see below), whose sum is σ = 1231474644. Its totient is φ = 410491546.

The previous prime is 820983083. The next prime is 820983113. The reversal of 820983094 is 490389028.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 820983094.

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 as a sum of consecutive naturals, namely, 205245772 + ... + 205245775.

It is an arithmetic number, because the mean of its divisors is an integer number (307868661).

Almost surely, 2^820983094 is an apocalyptic number.

820983094 is a deficient number, since it is larger than the sum of its proper divisors (410491550).

820983094 is a wasteful number, since it uses less digits than its factorization.

820983094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410491549.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 820983094 is about 28652.8025505360. The cubic root of 820983094 is about 936.3640642774.

The spelling of 820983094 in words is "eight hundred twenty million, nine hundred eighty-three thousand, ninety-four".