84821052 has 12 divisors (see below), whose sum is σ = 197915816. Its totient is φ = 28273680.

The previous prime is 84821021. The next prime is 84821063. The reversal of 84821052 is 25012848.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×84821052² = 14389221724773408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3534199 + ... + 3534222.

Almost surely, 2^84821052 is an apocalyptic number.

It is an amenable number.

84821052 is an abundant number, since it is smaller than the sum of its proper divisors (113094764).

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

84821052 is a wasteful number, since it uses less digits than its factorization.

84821052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068428 (or 7068426 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 84821052 is about 9209.8345262008. The cubic root of 84821052 is about 439.3741998951.

The spelling of 84821052 in words is "eighty-four million, eight hundred twenty-one thousand, fifty-two".