84971285 has 8 divisors (see below), whose sum is σ = 116532096. Its totient is φ = 58266000.

The previous prime is 84971267. The next prime is 84971291. The reversal of 84971285 is 58217948.

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

It is not a de Polignac number, because 84971285 - 2⁶ = 84971221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213841 + ... + 1213910.

It is an arithmetic number, because the mean of its divisors is an integer number (14566512).

Almost surely, 2^84971285 is an apocalyptic number.

It is an amenable number.

84971285 is a deficient number, since it is larger than the sum of its proper divisors (31560811).

84971285 is a wasteful number, since it uses less digits than its factorization.

84971285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427763.

The product of its digits is 161280, while the sum is 44.

The square root of 84971285 is about 9217.9870362243. The cubic root of 84971285 is about 439.6334498888.

The spelling of 84971285 in words is "eighty-four million, nine hundred seventy-one thousand, two hundred eighty-five".