84147212 has 48 divisors (see below), whose sum is σ = 163840320. Its totient is φ = 37632000.

The previous prime is 84147191. The next prime is 84147227. The reversal of 84147212 is 21274148.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139712 + ... + 140312.

It is an arithmetic number, because the mean of its divisors is an integer number (3413340).

Almost surely, 2^84147212 is an apocalyptic number.

It is an amenable number.

84147212 is a deficient number, since it is larger than the sum of its proper divisors (79693108).

84147212 is a wasteful number, since it uses less digits than its factorization.

84147212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 720 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 84147212 is about 9173.1789473443. The cubic root of 84147212 is about 438.2076050642.

The spelling of 84147212 in words is "eighty-four million, one hundred forty-seven thousand, two hundred twelve".