84821396 has 48 divisors (see below), whose sum is σ = 171568320. Its totient is φ = 36288000.

The previous prime is 84821389. The next prime is 84821419. The reversal of 84821396 is 69312848.

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 15 ways as a sum of consecutive naturals, for example, 201266 + ... + 201686.

It is an arithmetic number, because the mean of its divisors is an integer number (3574340).

Almost surely, 2^84821396 is an apocalyptic number.

It is an amenable number.

84821396 is an abundant number, since it is smaller than the sum of its proper divisors (86746924).

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

84821396 is a wasteful number, since it uses less digits than its factorization.

84821396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 694 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 84821396 is about 9209.8532018703. The cubic root of 84821396 is about 439.3747938692.

The spelling of 84821396 in words is "eighty-four million, eight hundred twenty-one thousand, three hundred ninety-six".