84158572 has 24 divisors (see below), whose sum is σ = 153407520. Its totient is φ = 40360320.

The previous prime is 84158563. The next prime is 84158593. The reversal of 84158572 is 27585148.

84158572 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

84158572 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6504 + ... + 14512.

It is an arithmetic number, because the mean of its divisors is an integer number (6391980).

Almost surely, 2^84158572 is an apocalyptic number.

It is an amenable number.

84158572 is a deficient number, since it is larger than the sum of its proper divisors (69248948).

84158572 is a wasteful number, since it uses less digits than its factorization.

84158572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8121 (or 8119 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 84158572 is about 9173.7981229151. The cubic root of 84158572 is about 438.2273237385.

The spelling of 84158572 in words is "eighty-four million, one hundred fifty-eight thousand, five hundred seventy-two".