80982999 has 12 divisors (see below), whose sum is σ = 117468000. Its totient is φ = 53761344.

The previous prime is 80982991. The next prime is 80983009. The reversal of 80982999 is 99928908.

It is not a de Polignac number, because 80982999 - 2³ = 80982991 is a prime.

It is a super-2 number, since 2×80982999² = 13116492254068002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80982991) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 16674 + ... + 20975.

It is an arithmetic number, because the mean of its divisors is an integer number (9789000).

Almost surely, 2^80982999 is an apocalyptic number.

80982999 is a deficient number, since it is larger than the sum of its proper divisors (36485001).

80982999 is a wasteful number, since it uses less digits than its factorization.

80982999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37894 (or 37891 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 80982999 is about 8999.0554504348. The cubic root of 80982999 is about 432.6445977581.

The spelling of 80982999 in words is "eighty million, nine hundred eighty-two thousand, nine hundred ninety-nine".