84487664 has 40 divisors (see below), whose sum is σ = 166609872. Its totient is φ = 41500160.

The previous prime is 84487651. The next prime is 84487691. The reversal of 84487664 is 46678448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362492 + ... + 362724.

Almost surely, 2^84487664 is an apocalyptic number.

It is an amenable number.

84487664 is a deficient number, since it is larger than the sum of its proper divisors (82122208).

84487664 is a wasteful number, since it uses less digits than its factorization.

84487664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 539 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The square root of 84487664 is about 9191.7171409917. The cubic root of 84487664 is about 438.7977925931.

The spelling of 84487664 in words is "eighty-four million, four hundred eighty-seven thousand, six hundred sixty-four".