84071742 has 8 divisors (see below), whose sum is σ = 168143496. Its totient is φ = 28023912.

The previous prime is 84071731. The next prime is 84071747. The reversal of 84071742 is 24717048.

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

84071742 is an admirable number.

It is a Smith number, since the sum of its digits (33) 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 (84071747) by changing a digit.

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, 7005973 + ... + 7005984.

It is an arithmetic number, because the mean of its divisors is an integer number (21017937).

Almost surely, 2^84071742 is an apocalyptic number.

84071742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84071742 is a wasteful number, since it uses less digits than its factorization.

84071742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14011962.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 84071742 is about 9169.0644015625. The cubic root of 84071742 is about 438.0765592491.

The spelling of 84071742 in words is "eighty-four million, seventy-one thousand, seven hundred forty-two".