84205664 has 12 divisors (see below), whose sum is σ = 165779964. Its totient is φ = 42102816.

The previous prime is 84205657. The next prime is 84205687. The reversal of 84205664 is 46650248.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315682 + ... + 1315745.

It is an arithmetic number, because the mean of its divisors is an integer number (13814997).

Almost surely, 2^84205664 is an apocalyptic number.

It is an amenable number.

84205664 is a deficient number, since it is larger than the sum of its proper divisors (81574300).

84205664 is a wasteful number, since it uses less digits than its factorization.

84205664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631437 (or 2631429 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 84205664 is about 9176.3644217086. The cubic root of 84205664 is about 438.3090470560.

The spelling of 84205664 in words is "eighty-four million, two hundred five thousand, six hundred sixty-four".