80847859 has 8 divisors (see below), whose sum is σ = 83045088. Its totient is φ = 78661440.

The previous prime is 80847857. The next prime is 80847863. The reversal of 80847859 is 95874808.

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

It is a cyclic number.

It is not a de Polignac number, because 80847859 - 2¹ = 80847857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80847857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13794 + ... + 18760.

It is an arithmetic number, because the mean of its divisors is an integer number (10380636).

Almost surely, 2^80847859 is an apocalyptic number.

80847859 is a deficient number, since it is larger than the sum of its proper divisors (2197229).

80847859 is a wasteful number, since it uses less digits than its factorization.

80847859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405.

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 80847859 is about 8991.5437495460. The cubic root of 80847859 is about 432.4038058868.

The spelling of 80847859 in words is "eighty million, eight hundred forty-seven thousand, eight hundred fifty-nine".