80032991 has 8 divisors (see below), whose sum is σ = 84847824. Its totient is φ = 75230080.

The previous prime is 80032949. The next prime is 80033017. The reversal of 80032991 is 19923008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80032991 - 2²² = 75838687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80032091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13496 + ... + 18498.

It is an arithmetic number, because the mean of its divisors is an integer number (10605978).

Almost surely, 2^80032991 is an apocalyptic number.

80032991 is a deficient number, since it is larger than the sum of its proper divisors (4814833).

80032991 is a wasteful number, since it uses less digits than its factorization.

80032991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 80032991 is about 8946.1159728678. The cubic root of 80032991 is about 430.9461606619.

Adding to 80032991 its reverse (19923008), we get a palindrome (99955999).

The spelling of 80032991 in words is "eighty million, thirty-two thousand, nine hundred ninety-one".