84511172 has 12 divisors (see below), whose sum is σ = 147982716. Its totient is φ = 42230400.

The previous prime is 84511171. The next prime is 84511201. The reversal of 84511172 is 27111548.

It can be written as a sum of positive squares in 2 ways, for example, as 67338436 + 17172736 = 8206^2 + 4144^2 .

It is not an unprimeable number, because it can be changed into a prime (84511171) 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, 2672 + ... + 13272.

It is an arithmetic number, because the mean of its divisors is an integer number (12331893).

Almost surely, 2^84511172 is an apocalyptic number.

It is an amenable number.

84511172 is a deficient number, since it is larger than the sum of its proper divisors (63471544).

84511172 is a wasteful number, since it uses less digits than its factorization.

84511172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12598 (or 12596 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 84511172 is about 9192.9958120299. The cubic root of 84511172 is about 438.8384861155.

The spelling of 84511172 in words is "eighty-four million, five hundred eleven thousand, one hundred seventy-two".