84826428 has 12 divisors (see below), whose sum is σ = 197928360. Its totient is φ = 28275472.

The previous prime is 84826397. The next prime is 84826439. The reversal of 84826428 is 82462848.

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

It is a self number, because there is not a number n which added to its sum of digits gives 84826428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3534423 + ... + 3534446.

It is an arithmetic number, because the mean of its divisors is an integer number (16494030).

Almost surely, 2^84826428 is an apocalyptic number.

It is an amenable number.

84826428 is an abundant number, since it is smaller than the sum of its proper divisors (113101932).

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

84826428 is a wasteful number, since it uses less digits than its factorization.

84826428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068876 (or 7068874 counting only the distinct ones).

The product of its digits is 196608, while the sum is 42.

The square root of 84826428 is about 9210.1263834977. The cubic root of 84826428 is about 439.3834822833.

The spelling of 84826428 in words is "eighty-four million, eight hundred twenty-six thousand, four hundred twenty-eight".