84913871 has 4 divisors (see below), whose sum is σ = 97044432. Its totient is φ = 72783312.

The previous prime is 84913859. The next prime is 84913903. The reversal of 84913871 is 17831948.

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

It is not a de Polignac number, because 84913871 - 2¹⁰ = 84912847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84913811) 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, 6065270 + ... + 6065283.

It is an arithmetic number, because the mean of its divisors is an integer number (24261108).

Almost surely, 2^84913871 is an apocalyptic number.

84913871 is a deficient number, since it is larger than the sum of its proper divisors (12130561).

84913871 is a wasteful number, since it uses less digits than its factorization.

84913871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130560.

The product of its digits is 48384, while the sum is 41.

The square root of 84913871 is about 9214.8722725820. The cubic root of 84913871 is about 439.5344093636.

The spelling of 84913871 in words is "eighty-four million, nine hundred thirteen thousand, eight hundred seventy-one".