84784893 has 8 divisors (see below), whose sum is σ = 116944800. Its totient is φ = 54574128.

The previous prime is 84784891. The next prime is 84784919. The reversal of 84784893 is 39848748.

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

It is not a de Polignac number, because 84784893 - 2¹ = 84784891 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84784891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487183 + ... + 487356.

It is an arithmetic number, because the mean of its divisors is an integer number (14618100).

Almost surely, 2^84784893 is an apocalyptic number.

It is an amenable number.

84784893 is a deficient number, since it is larger than the sum of its proper divisors (32159907).

84784893 is a wasteful number, since it uses less digits than its factorization.

84784893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974571.

The product of its digits is 1548288, while the sum is 51.

The square root of 84784893 is about 9207.8712523580. The cubic root of 84784893 is about 439.3117563176.

The spelling of 84784893 in words is "eighty-four million, seven hundred eighty-four thousand, eight hundred ninety-three".