84212285 has 16 divisors (see below), whose sum is σ = 103109760. Its totient is φ = 66014400.

The previous prime is 84212279. The next prime is 84212287. The reversal of 84212285 is 58221248.

It is not a de Polignac number, because 84212285 - 2⁶ = 84212221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84212287) 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, 51206 + ... + 52824.

It is an arithmetic number, because the mean of its divisors is an integer number (6444360).

Almost surely, 2^84212285 is an apocalyptic number.

It is an amenable number.

84212285 is a deficient number, since it is larger than the sum of its proper divisors (18897475).

84212285 is a wasteful number, since it uses less digits than its factorization.

84212285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828.

The product of its digits is 10240, while the sum is 32.

The square root of 84212285 is about 9176.7251784065. The cubic root of 84212285 is about 438.3205346765.

The spelling of 84212285 in words is "eighty-four million, two hundred twelve thousand, two hundred eighty-five".