84872571 has 16 divisors (see below), whose sum is σ = 129464064. Its totient is φ = 48448224.

The previous prime is 84872539. The next prime is 84872581. The reversal of 84872571 is 17527848.

It is not a de Polignac number, because 84872571 - 2⁵ = 84872539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84872521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30000 + ... + 32706.

It is an arithmetic number, because the mean of its divisors is an integer number (8091504).

Almost surely, 2^84872571 is an apocalyptic number.

84872571 is a deficient number, since it is larger than the sum of its proper divisors (44591493).

84872571 is a wasteful number, since it uses less digits than its factorization.

84872571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210.

The product of its digits is 125440, while the sum is 42.

The square root of 84872571 is about 9212.6310574124. The cubic root of 84872571 is about 439.4631382638.

The spelling of 84872571 in words is "eighty-four million, eight hundred seventy-two thousand, five hundred seventy-one".