84790836 has 72 divisors (see below), whose sum is σ = 233192960. Its totient is φ = 25821504.

The previous prime is 84790819. The next prime is 84790837. The reversal of 84790836 is 63809748.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 84790791 and 84790800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84790837) 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 23 ways as a sum of consecutive naturals, for example, 47325 + ... + 49083.

Almost surely, 2^84790836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84790836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116596480).

84790836 is an abundant number, since it is smaller than the sum of its proper divisors (148402124).

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

84790836 is a wasteful number, since it uses less digits than its factorization.

84790836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885 (or 1880 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 84790836 is about 9208.1939597296. The cubic root of 84790836 is about 439.3220206020.

The spelling of 84790836 in words is "eighty-four million, seven hundred ninety thousand, eight hundred thirty-six".