84661704 has 24 divisors (see below), whose sum is σ = 229292310. Its totient is φ = 28220544.

The previous prime is 84661699. The next prime is 84661721. The reversal of 84661704 is 40716648.

It can be written as a sum of positive squares in only one way, i.e., 67272804 + 17388900 = 8202^2 + 4170^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 587857 + ... + 588000.

Almost surely, 2^84661704 is an apocalyptic number.

It is an amenable number.

84661704 is an abundant number, since it is smaller than the sum of its proper divisors (144630606).

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

84661704 is a wasteful number, since it uses less digits than its factorization.

84661704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175869 (or 1175862 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 84661704 is about 9201.1794896089. The cubic root of 84661704 is about 439.0988858174.

The spelling of 84661704 in words is "eighty-four million, six hundred sixty-one thousand, seven hundred four".