84989736 has 224 divisors, whose sum is σ = 275436000. Its totient is φ = 24354432.

The previous prime is 84989713. The next prime is 84989741. The reversal of 84989736 is 63798948.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (2612736) is a multiple of the sum of its prime divisors (96).

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 55 ways as a sum of consecutive naturals, for example, 1440475 + ... + 1440533.

It is an arithmetic number, because the mean of its divisors is an integer number (1229625).

Almost surely, 2^84989736 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 84989736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137718000).

84989736 is an abundant number, since it is smaller than the sum of its proper divisors (190446264).

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

84989736 is a wasteful number, since it uses less digits than its factorization.

84989736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 96 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 84989736 is about 9218.9877969330. The cubic root of 84989736 is about 439.6652688329.

The spelling of 84989736 in words is "eighty-four million, nine hundred eighty-nine thousand, seven hundred thirty-six".