80099391 has 8 divisors (see below), whose sum is σ = 107266480. Its totient is φ = 53165952.

The previous prime is 80099389. The next prime is 80099419. The reversal of 80099391 is 19399008.

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

It is not a de Polignac number, because 80099391 - 2¹ = 80099389 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 (80099311) 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, 57610 + ... + 58983.

It is an arithmetic number, because the mean of its divisors is an integer number (13408310).

Almost surely, 2^80099391 is an apocalyptic number.

80099391 is a deficient number, since it is larger than the sum of its proper divisors (27167089).

80099391 is a wasteful number, since it uses less digits than its factorization.

80099391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116825.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 80099391 is about 8949.8263111638. The cubic root of 80099391 is about 431.0653070075.

The spelling of 80099391 in words is "eighty million, ninety-nine thousand, three hundred ninety-one".