84828823 has 4 divisors (see below), whose sum is σ = 84907528. Its totient is φ = 84750120.

The previous prime is 84828811. The next prime is 84828833. The reversal of 84828823 is 32882848.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84828823 - 2¹⁷ = 84697751 is a prime.

It is a super-3 number, since 3×84828823³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84828823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84828833) by changing a digit.

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, 37713 + ... + 39898.

It is an arithmetic number, because the mean of its divisors is an integer number (21226882).

Almost surely, 2^84828823 is an apocalyptic number.

84828823 is a deficient number, since it is larger than the sum of its proper divisors (78705).

84828823 is a wasteful number, since it uses less digits than its factorization.

84828823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78704.

The product of its digits is 196608, while the sum is 43.

The square root of 84828823 is about 9210.2564025113. The cubic root of 84828823 is about 439.3876174471.

The spelling of 84828823 in words is "eighty-four million, eight hundred twenty-eight thousand, eight hundred twenty-three".