84864020 has 24 divisors (see below), whose sum is σ = 185963904. Its totient is φ = 32469536.

The previous prime is 84864001. The next prime is 84864037. The reversal of 84864020 is 2046848.

It is a congruent number.

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, 91784 + ... + 92703.

It is an arithmetic number, because the mean of its divisors is an integer number (7748496).

Almost surely, 2^84864020 is an apocalyptic number.

It is an amenable number.

84864020 is an abundant number, since it is smaller than the sum of its proper divisors (101099884).

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

84864020 is a wasteful number, since it uses less digits than its factorization.

84864020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184519 (or 184517 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 84864020 is about 9212.1669546313. The cubic root of 84864020 is about 439.4483789784.

The spelling of 84864020 in words is "eighty-four million, eight hundred sixty-four thousand, twenty".