84006684 has 36 divisors (see below), whose sum is σ = 212732520. Its totient is φ = 27951840.

The previous prime is 84006617. The next prime is 84006701. The reversal of 84006684 is 48660048.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21954 + ... + 25494.

Almost surely, 2^84006684 is an apocalyptic number.

It is an amenable number.

84006684 is an abundant number, since it is smaller than the sum of its proper divisors (128725836).

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

84006684 is a wasteful number, since it uses less digits than its factorization.

84006684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210 (or 4205 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 84006684 is about 9165.5160247528. The cubic root of 84006684 is about 437.9635298338.

The spelling of 84006684 in words is "eighty-four million, six thousand, six hundred eighty-four".