80991302 has 8 divisors (see below), whose sum is σ = 138842256. Its totient is φ = 34710552.

The previous prime is 80991301. The next prime is 80991341. The reversal of 80991302 is 20319908.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80991301) 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 3 ways as a sum of consecutive naturals, for example, 2892533 + ... + 2892560.

It is an arithmetic number, because the mean of its divisors is an integer number (17355282).

Almost surely, 2^80991302 is an apocalyptic number.

80991302 is a deficient number, since it is larger than the sum of its proper divisors (57850954).

80991302 is a wasteful number, since it uses less digits than its factorization.

80991302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5785102.

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

The square root of 80991302 is about 8999.5167648047. The cubic root of 80991302 is about 432.6593832702.

The spelling of 80991302 in words is "eighty million, nine hundred ninety-one thousand, three hundred two".