820483788 has 24 divisors (see below), whose sum is σ = 1921235008. Its totient is φ = 272527056.

The previous prime is 820483757. The next prime is 820483819. The reversal of 820483788 is 887384028.

It is an interprime number because it is at equal distance from previous prime (820483757) and next prime (820483819).

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, 117406 + ... + 124197.

Almost surely, 2^820483788 is an apocalyptic number.

It is an amenable number.

820483788 is an abundant number, since it is smaller than the sum of its proper divisors (1100751220).

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

820483788 is a wasteful number, since it uses less digits than its factorization.

820483788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241893 (or 241891 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The square root of 820483788 is about 28644.0881858718. The cubic root of 820483788 is about 936.1741996252.

The spelling of 820483788 in words is "eight hundred twenty million, four hundred eighty-three thousand, seven hundred eighty-eight".