84047664 has 40 divisors (see below), whose sum is σ = 217486080. Its totient is φ = 27969088.

The previous prime is 84047633. The next prime is 84047731. The reversal of 84047664 is 46674048.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39229 + ... + 41315.

It is an arithmetic number, because the mean of its divisors is an integer number (5437152).

Almost surely, 2^84047664 is an apocalyptic number.

It is an amenable number.

84047664 is an abundant number, since it is smaller than the sum of its proper divisors (133438416).

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

84047664 is a wasteful number, since it uses less digits than its factorization.

84047664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937 (or 2931 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 84047664 is about 9167.7513055274. The cubic root of 84047664 is about 438.0347338023.

The spelling of 84047664 in words is "eighty-four million, forty-seven thousand, six hundred sixty-four".