84171112 has 16 divisors (see below), whose sum is σ = 158017860. Its totient is φ = 42033024.

The previous prime is 84171089. The next prime is 84171119. The reversal of 84171112 is 21117148.

It can be written as a sum of positive squares in 2 ways, for example, as 84162276 + 8836 = 9174^2 + 94^2 .

It is not an unprimeable number, because it can be changed into a prime (84171119) 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, 718 + ... + 12994.

Almost surely, 2^84171112 is an apocalyptic number.

It is an amenable number.

84171112 is a deficient number, since it is larger than the sum of its proper divisors (73846748).

84171112 is a wasteful number, since it uses less digits than its factorization.

84171112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13140 (or 13136 counting only the distinct ones).

The product of its digits is 448, while the sum is 25.

The square root of 84171112 is about 9174.4815657344. The cubic root of 84171112 is about 438.2490885950.

The spelling of 84171112 in words is "eighty-four million, one hundred seventy-one thousand, one hundred twelve".