84845870 has 8 divisors (see below), whose sum is σ = 152722584. Its totient is φ = 33938344.

The previous prime is 84845869. The next prime is 84845879. The reversal of 84845870 is 7854848.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84845879) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4242284 + ... + 4242303.

It is an arithmetic number, because the mean of its divisors is an integer number (19090323).

Almost surely, 2^84845870 is an apocalyptic number.

84845870 is a deficient number, since it is larger than the sum of its proper divisors (67876714).

84845870 is a wasteful number, since it uses less digits than its factorization.

84845870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8484594.

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 84845870 is about 9211.1817917138. The cubic root of 84845870 is about 439.4170482419.

The spelling of 84845870 in words is "eighty-four million, eight hundred forty-five thousand, eight hundred seventy".