84536870 has 32 divisors (see below), whose sum is σ = 166406400. Its totient is φ = 30665440.

The previous prime is 84536857. The next prime is 84536923. The reversal of 84536870 is 7863548.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65249 + ... + 66531.

It is an arithmetic number, because the mean of its divisors is an integer number (5200200).

Almost surely, 2^84536870 is an apocalyptic number.

84536870 is a deficient number, since it is larger than the sum of its proper divisors (81869530).

84536870 is a wasteful number, since it uses less digits than its factorization.

84536870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 84536870 is about 9194.3934003283. The cubic root of 84536870 is about 438.8829620046.

The spelling of 84536870 in words is "eighty-four million, five hundred thirty-six thousand, eight hundred seventy".