84943985 has 32 divisors (see below), whose sum is σ = 124001280. Its totient is φ = 54531072.

The previous prime is 84943949. The next prime is 84944009. The reversal of 84943985 is 58934948.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 84943985 - 2¹⁰ = 84942961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218171 + ... + 218559.

It is an arithmetic number, because the mean of its divisors is an integer number (3875040).

Almost surely, 2^84943985 is an apocalyptic number.

84943985 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84943985 is a deficient number, since it is larger than the sum of its proper divisors (39057295).

84943985 is a wasteful number, since it uses less digits than its factorization.

84943985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785.

The product of its digits is 1244160, while the sum is 50.

The square root of 84943985 is about 9216.5061167451. The cubic root of 84943985 is about 439.5863623000.

The spelling of 84943985 in words is "eighty-four million, nine hundred forty-three thousand, nine hundred eighty-five".