84217064 has 16 divisors (see below), whose sum is σ = 158004420. Its totient is φ = 42082560.

The previous prime is 84217061. The next prime is 84217087. The reversal of 84217064 is 46071248.

It can be written as a sum of positive squares in 2 ways, for example, as 84088900 + 128164 = 9170^2 + 358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84217064.

It is not an unprimeable number, because it can be changed into a prime (84217061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23282 + ... + 26654.

Almost surely, 2^84217064 is an apocalyptic number.

It is an amenable number.

84217064 is a deficient number, since it is larger than the sum of its proper divisors (73787356).

84217064 is a wasteful number, since it uses less digits than its factorization.

84217064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500 (or 6496 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 84217064 is about 9176.9855617191. The cubic root of 84217064 is about 438.3288260013.

The spelling of 84217064 in words is "eighty-four million, two hundred seventeen thousand, sixty-four".