84529047 has 4 divisors (see below), whose sum is σ = 112705400. Its totient is φ = 56352696.

The previous prime is 84529007. The next prime is 84529051. The reversal of 84529047 is 74092548.

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

It is not a de Polignac number, because 84529047 - 2⁷ = 84528919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84528996 and 84529014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84529007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14088172 + ... + 14088177.

It is an arithmetic number, because the mean of its divisors is an integer number (28176350).

Almost surely, 2^84529047 is an apocalyptic number.

84529047 is a deficient number, since it is larger than the sum of its proper divisors (28176353).

84529047 is a wasteful number, since it uses less digits than its factorization.

84529047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28176352.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 84529047 is about 9193.9679681844. The cubic root of 84529047 is about 438.8694235832.

It can be divided in two parts, 845 and 29047, that added together give a palindrome (29892).

The spelling of 84529047 in words is "eighty-four million, five hundred twenty-nine thousand, forty-seven".