84867870 has 32 divisors (see below), whose sum is σ = 214404480. Its totient is φ = 21440160.

The previous prime is 84867847. The next prime is 84867911. The reversal of 84867870 is 7876848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73876 + ... + 75015.

It is an arithmetic number, because the mean of its divisors is an integer number (6700140).

Almost surely, 2^84867870 is an apocalyptic number.

84867870 is an abundant number, since it is smaller than the sum of its proper divisors (129536610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84867870 is a wasteful number, since it uses less digits than its factorization.

84867870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148920.

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 84867870 is about 9212.3759150395. The cubic root of 84867870 is about 439.4550243179.

The spelling of 84867870 in words is "eighty-four million, eight hundred sixty-seven thousand, eight hundred seventy".