80767699 has 4 divisors (see below), whose sum is σ = 80890920. Its totient is φ = 80644480.

The previous prime is 80767693. The next prime is 80767723. The reversal of 80767699 is 99676708.

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

It is a cyclic number.

It is not a de Polignac number, because 80767699 - 2³ = 80767691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80767691) 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, 60622 + ... + 61939.

It is an arithmetic number, because the mean of its divisors is an integer number (20222730).

Almost surely, 2^80767699 is an apocalyptic number.

80767699 is a deficient number, since it is larger than the sum of its proper divisors (123221).

80767699 is a wasteful number, since it uses less digits than its factorization.

80767699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123220.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 80767699 is about 8987.0851225523. The cubic root of 80767699 is about 432.2608503348.

The spelling of 80767699 in words is "eighty million, seven hundred sixty-seven thousand, six hundred ninety-nine".