805980900 has 36 divisors (see below), whose sum is σ = 2331972272. Its totient is φ = 214928160.

The previous prime is 805980899. The next prime is 805980907. The reversal of 805980900 is 9089508.

It is a super-2 number, since 2×805980900² = 1299210422329620000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (805980907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1343002 + ... + 1343601.

Almost surely, 2^805980900 is an apocalyptic number.

It is an amenable number.

805980900 is an abundant number, since it is smaller than the sum of its proper divisors (1525991372).

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

805980900 is a wasteful number, since it uses less digits than its factorization.

805980900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686620 (or 2686613 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 805980900 is about 28389.8027467610. The cubic root of 805980900 is about 930.6254319977.

The spelling of 805980900 in words is "eight hundred five million, nine hundred eighty thousand, nine hundred".