84021252 has 24 divisors (see below), whose sum is σ = 224056896. Its totient is φ = 24006048.

The previous prime is 84021229. The next prime is 84021257. The reversal of 84021252 is 25212048.

It is not an unprimeable number, because it can be changed into a prime (84021257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500043 + ... + 500210.

It is an arithmetic number, because the mean of its divisors is an integer number (9335704).

Almost surely, 2^84021252 is an apocalyptic number.

It is an amenable number.

84021252 is an abundant number, since it is smaller than the sum of its proper divisors (140035644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84021252 is a wasteful number, since it uses less digits than its factorization.

84021252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000267 (or 1000265 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 84021252 is about 9166.3107082403. The cubic root of 84021252 is about 437.9888448192.

The spelling of 84021252 in words is "eighty-four million, twenty-one thousand, two hundred fifty-two".