84866000 has 40 divisors (see below), whose sum is σ = 205210824. Its totient is φ = 33945600.

The previous prime is 84865999. The next prime is 84866011. The reversal of 84866000 is 66848.

It can be written as a sum of positive squares in 4 ways, for example, as 2637376 + 82228624 = 1624^2 + 9068^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 19217 + ... + 23216.

Almost surely, 2^84866000 is an apocalyptic number.

84866000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84866000 is an abundant number, since it is smaller than the sum of its proper divisors (120344824).

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

84866000 is a wasteful number, since it uses less digits than its factorization.

84866000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42456 (or 42440 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 84866000 is about 9212.2744205761. The cubic root of 84866000 is about 439.4517966067.

The spelling of 84866000 in words is "eighty-four million, eight hundred sixty-six thousand".