80766771 has 16 divisors (see below), whose sum is σ = 111302400. Its totient is φ = 52063200.

The previous prime is 80766683. The next prime is 80766797. The reversal of 80766771 is 17766708.

It is not a de Polignac number, because 80766771 - 2¹⁴ = 80750387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80766071) 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 15 ways as a sum of consecutive naturals, for example, 9930 + ... + 16128.

It is an arithmetic number, because the mean of its divisors is an integer number (6956400).

Almost surely, 2^80766771 is an apocalyptic number.

80766771 is a deficient number, since it is larger than the sum of its proper divisors (30535629).

80766771 is a wasteful number, since it uses less digits than its factorization.

80766771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 80766771 is about 8987.0334927606. The cubic root of 80766771 is about 432.2591948066.

The spelling of 80766771 in words is "eighty million, seven hundred sixty-six thousand, seven hundred seventy-one".