806116978 has 8 divisors (see below), whose sum is σ = 1210647168. Its totient is φ = 402567924.

The previous prime is 806116967. The next prime is 806116991. The reversal of 806116978 is 879611608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 243226 + ... + 246517.

It is an arithmetic number, because the mean of its divisors is an integer number (151330896).

Almost surely, 2^806116978 is an apocalyptic number.

806116978 is a deficient number, since it is larger than the sum of its proper divisors (404530190).

806116978 is a wasteful number, since it uses less digits than its factorization.

806116978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490568.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 806116978 is about 28392.1992455674. The cubic root of 806116978 is about 930.6778031814.

The spelling of 806116978 in words is "eight hundred six million, one hundred sixteen thousand, nine hundred seventy-eight".