84870992 has 40 divisors (see below), whose sum is σ = 169245120. Its totient is φ = 41207040.

The previous prime is 84870991. The next prime is 84871001. The reversal of 84870992 is 29907848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84870991) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 193109 + ... + 193547.

It is an arithmetic number, because the mean of its divisors is an integer number (4231128).

Almost surely, 2^84870992 is an apocalyptic number.

It is an amenable number.

84870992 is a deficient number, since it is larger than the sum of its proper divisors (84374128).

84870992 is a wasteful number, since it uses less digits than its factorization.

84870992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 84870992 is about 9212.5453594541. The cubic root of 84870992 is about 439.4604129366.

The spelling of 84870992 in words is "eighty-four million, eight hundred seventy thousand, nine hundred ninety-two".