84538828 has 72 divisors (see below), whose sum is σ = 177634800. Its totient is φ = 35038080.

The previous prime is 84538801. The next prime is 84538849. The reversal of 84538828 is 82883548.

It is a happy number.

It is a super-2 number, since 2×84538828² = 14293626879227168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266526 + ... + 266842.

It is an arithmetic number, because the mean of its divisors is an integer number (2467150).

Almost surely, 2^84538828 is an apocalyptic number.

It is an amenable number.

84538828 is an abundant number, since it is smaller than the sum of its proper divisors (93095972).

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

84538828 is a wasteful number, since it uses less digits than its factorization.

84538828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 378 counting only the distinct ones).

The product of its digits is 491520, while the sum is 46.

The square root of 84538828 is about 9194.4998776442. The cubic root of 84538828 is about 438.8863503731.

The spelling of 84538828 in words is "eighty-four million, five hundred thirty-eight thousand, eight hundred twenty-eight".