84939843 has 8 divisors (see below), whose sum is σ = 113304256. Its totient is φ = 56601000.

The previous prime is 84939817. The next prime is 84939847. The reversal of 84939843 is 34893948.

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

It is not a de Polignac number, because 84939843 - 2⁸ = 84939587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84939792 and 84939801.

It is not an unprimeable number, because it can be changed into a prime (84939847) 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, 3588 + ... + 13518.

It is an arithmetic number, because the mean of its divisors is an integer number (14163032).

Almost surely, 2^84939843 is an apocalyptic number.

84939843 is a deficient number, since it is larger than the sum of its proper divisors (28364413).

84939843 is a wasteful number, since it uses less digits than its factorization.

84939843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12785.

The product of its digits is 746496, while the sum is 48.

The square root of 84939843 is about 9216.2814084640. The cubic root of 84939843 is about 439.5792172137.

It can be divided in two parts, 8493 and 9843, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 84939843 in words is "eighty-four million, nine hundred thirty-nine thousand, eight hundred forty-three".