80015799 has 4 divisors (see below), whose sum is σ = 106687736. Its totient is φ = 53343864.

The previous prime is 80015797. The next prime is 80015833. The reversal of 80015799 is 99751008.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80015799 - 2¹ = 80015797 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 (80015791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13335964 + ... + 13335969.

It is an arithmetic number, because the mean of its divisors is an integer number (26671934).

Almost surely, 2^80015799 is an apocalyptic number.

80015799 is a deficient number, since it is larger than the sum of its proper divisors (26671937).

80015799 is a wasteful number, since it uses less digits than its factorization.

80015799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26671936.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 80015799 is about 8945.1550573481. The cubic root of 80015799 is about 430.9153010674.

The spelling of 80015799 in words is "eighty million, fifteen thousand, seven hundred ninety-nine".