80840799 has 48 divisors (see below), whose sum is σ = 131074944. Its totient is φ = 47692800.

The previous prime is 80840789. The next prime is 80840833. The reversal of 80840799 is 99704808.

It is not a de Polignac number, because 80840799 - 2¹² = 80836703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80840759) 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 47 ways as a sum of consecutive naturals, for example, 335319 + ... + 335559.

It is an arithmetic number, because the mean of its divisors is an integer number (2730728).

Almost surely, 2^80840799 is an apocalyptic number.

80840799 is a deficient number, since it is larger than the sum of its proper divisors (50234145).

80840799 is a wasteful number, since it uses less digits than its factorization.

80840799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 80840799 is about 8991.1511498806. The cubic root of 80840799 is about 432.3912190363.

The spelling of 80840799 in words is "eighty million, eight hundred forty thousand, seven hundred ninety-nine".