820982824 has 16 divisors (see below), whose sum is σ = 1539717300. Its totient is φ = 410391552.

The previous prime is 820982791. The next prime is 820982831. The reversal of 820982824 is 428289028.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 805537924 + 15444900 = 28382^2 + 3930^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31624 + ... + 51400.

Almost surely, 2^820982824 is an apocalyptic number.

It is an amenable number.

820982824 is a deficient number, since it is larger than the sum of its proper divisors (718734476).

820982824 is a wasteful number, since it uses less digits than its factorization.

820982824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24972 (or 24968 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 820982824 is about 28652.7978389546. The cubic root of 820982824 is about 936.3639616288.

The spelling of 820982824 in words is "eight hundred twenty million, nine hundred eighty-two thousand, eight hundred twenty-four".