84347806 has 8 divisors (see below), whose sum is σ = 126584280. Its totient is φ = 42153048.

The previous prime is 84347789. The next prime is 84347839. The reversal of 84347806 is 60874348.

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

It is a super-2 number, since 2×84347806² = 14229104754027272, which contains 22 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4756 + ... + 13831.

It is an arithmetic number, because the mean of its divisors is an integer number (15823035).

Almost surely, 2^84347806 is an apocalyptic number.

84347806 is a deficient number, since it is larger than the sum of its proper divisors (42236474).

84347806 is a wasteful number, since it uses less digits than its factorization.

84347806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20858.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 84347806 is about 9184.1061622784. The cubic root of 84347806 is about 438.5555352312. Note that the first 4 decimals are identical.

The spelling of 84347806 in words is "eighty-four million, three hundred forty-seven thousand, eight hundred six".