84092872 has 8 divisors (see below), whose sum is σ = 157674150. Its totient is φ = 42046432.

The previous prime is 84092849. The next prime is 84092873. The reversal of 84092872 is 27829048.

It can be written as a sum of positive squares in only one way, i.e., 83649316 + 443556 = 9146^2 + 666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×84092872² = 14143222242416768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84092873) 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 as a sum of consecutive naturals, namely, 5255797 + ... + 5255812.

Almost surely, 2^84092872 is an apocalyptic number.

It is an amenable number.

84092872 is a deficient number, since it is larger than the sum of its proper divisors (73581278).

84092872 is a wasteful number, since it uses less digits than its factorization.

84092872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10511615 (or 10511611 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 84092872 is about 9170.2165732332. The cubic root of 84092872 is about 438.1132572014.

The spelling of 84092872 in words is "eighty-four million, ninety-two thousand, eight hundred seventy-two".