80416989 has 8 divisors (see below), whose sum is σ = 119136320. Its totient is φ = 53611308.

The previous prime is 80416981. The next prime is 80416991. The reversal of 80416989 is 98961408.

It is not a de Polignac number, because 80416989 - 2³ = 80416981 is a prime.

It is a super-2 number, since 2×80416989² = 12933784239652242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80416981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489177 + ... + 1489230.

It is an arithmetic number, because the mean of its divisors is an integer number (14892040).

Almost surely, 2^80416989 is an apocalyptic number.

It is an amenable number.

80416989 is a deficient number, since it is larger than the sum of its proper divisors (38719331).

80416989 is a wasteful number, since it uses less digits than its factorization.

80416989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978416 (or 2978410 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 80416989 is about 8967.5520070976. The cubic root of 80416989 is about 431.6342873271.

The spelling of 80416989 in words is "eighty million, four hundred sixteen thousand, nine hundred eighty-nine".