80934847 has 4 divisors (see below), whose sum is σ = 92496976. Its totient is φ = 69372720.

The previous prime is 80934839. The next prime is 80934857. The reversal of 80934847 is 74843908.

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 80934847 - 2³ = 80934839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80934857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5781054 + ... + 5781067.

It is an arithmetic number, because the mean of its divisors is an integer number (23124244).

Almost surely, 2^80934847 is an apocalyptic number.

80934847 is a deficient number, since it is larger than the sum of its proper divisors (11562129).

80934847 is a wasteful number, since it uses less digits than its factorization.

80934847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11562128.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 80934847 is about 8996.3796607302. The cubic root of 80934847 is about 432.5588314726.

The spelling of 80934847 in words is "eighty million, nine hundred thirty-four thousand, eight hundred forty-seven".