84676805 has 4 divisors (see below), whose sum is σ = 101612172. Its totient is φ = 67741440.

The previous prime is 84676799. The next prime is 84676817. The reversal of 84676805 is 50867648.

84676805 is nontrivially palindromic in base 8.

It is a Cunningham number, because it is equal to 9202²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30492484 + 54184321 = 5522^2 + 7361^2 .

It is not a de Polignac number, because 84676805 - 2⁴ = 84676789 is a prime.

It is a super-2 number, since 2×84676805² = 14340322610016050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8467676 + ... + 8467685.

It is an arithmetic number, because the mean of its divisors is an integer number (25403043).

Almost surely, 2^84676805 is an apocalyptic number.

It is an amenable number.

84676805 is a deficient number, since it is larger than the sum of its proper divisors (16935367).

84676805 is a wasteful number, since it uses less digits than its factorization.

84676805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16935366.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 84676805 is about 9202.0000543360. Note that the first 4 decimals coincide. The cubic root of 84676805 is about 439.1249914345.

The spelling of 84676805 in words is "eighty-four million, six hundred seventy-six thousand, eight hundred five".