80866806 has 16 divisors (see below), whose sum is σ = 162114048. Its totient is φ = 26892200.

The previous prime is 80866787. The next prime is 80866811. The reversal of 80866806 is 60866808.

It is a super-3 number, since 3×80866806³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13050 + ... + 18221.

It is an arithmetic number, because the mean of its divisors is an integer number (10132128).

Almost surely, 2^80866806 is an apocalyptic number.

80866806 is an abundant number, since it is smaller than the sum of its proper divisors (81247242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80866806 is a wasteful number, since it uses less digits than its factorization.

80866806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31707.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 80866806 is about 8992.5972888816. The cubic root of 80866806 is about 432.4375817348.

The spelling of 80866806 in words is "eighty million, eight hundred sixty-six thousand, eight hundred six".