84668515 has 8 divisors (see below), whose sum is σ = 101655648. Its totient is φ = 67699200.

The previous prime is 84668513. The next prime is 84668537. The reversal of 84668515 is 51586648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84668515 - 2¹ = 84668513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84668513) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10690 + ... + 16840.

It is an arithmetic number, because the mean of its divisors is an integer number (12706956).

Almost surely, 2^84668515 is an apocalyptic number.

84668515 is a deficient number, since it is larger than the sum of its proper divisors (16987133).

84668515 is a wasteful number, since it uses less digits than its factorization.

84668515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8909.

The product of its digits is 230400, while the sum is 43.

The square root of 84668515 is about 9201.5495977580. The cubic root of 84668515 is about 439.1106606112.

The spelling of 84668515 in words is "eighty-four million, six hundred sixty-eight thousand, five hundred fifteen".