84827666 has 64 divisors (see below), whose sum is σ = 170449920. Its totient is φ = 30663360.

The previous prime is 84827653. The next prime is 84827681. The reversal of 84827666 is 66672848.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84827666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154805 + ... + 155351.

It is an arithmetic number, because the mean of its divisors is an integer number (2663280).

Almost surely, 2^84827666 is an apocalyptic number.

84827666 is an abundant number, since it is smaller than the sum of its proper divisors (85622254).

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

84827666 is a wasteful number, since it uses less digits than its factorization.

84827666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its digits is 774144, while the sum is 47.

The square root of 84827666 is about 9210.1935918850. The cubic root of 84827666 is about 439.3856198015.

The spelling of 84827666 in words is "eighty-four million, eight hundred twenty-seven thousand, six hundred sixty-six".