84529147 has 4 divisors (see below), whose sum is σ = 84548080. Its totient is φ = 84510216.

The previous prime is 84529079. The next prime is 84529177. The reversal of 84529147 is 74192548.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84529147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84529177) 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 3 ways as a sum of consecutive naturals, for example, 1354 + ... + 13072.

It is an arithmetic number, because the mean of its divisors is an integer number (21137020).

Almost surely, 2^84529147 is an apocalyptic number.

84529147 is a deficient number, since it is larger than the sum of its proper divisors (18933).

84529147 is a wasteful number, since it uses less digits than its factorization.

84529147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18932.

The product of its digits is 80640, while the sum is 40.

The square root of 84529147 is about 9193.9734065310. The cubic root of 84529147 is about 438.8695966476.

It can be divided in two parts, 845 and 29147, that added together give a palindrome (29992).

The spelling of 84529147 in words is "eighty-four million, five hundred twenty-nine thousand, one hundred forty-seven".