84668963 has 4 divisors (see below), whose sum is σ = 85112448. Its totient is φ = 84225480.

The previous prime is 84668929. The next prime is 84668971. The reversal of 84668963 is 36986648.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84668963 - 2¹⁶ = 84603427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84668923) 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 3 ways as a sum of consecutive naturals, for example, 221456 + ... + 221837.

It is an arithmetic number, because the mean of its divisors is an integer number (21278112).

Almost surely, 2^84668963 is an apocalyptic number.

84668963 is a deficient number, since it is larger than the sum of its proper divisors (443485).

84668963 is a wasteful number, since it uses less digits than its factorization.

84668963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443484.

The product of its digits is 1492992, while the sum is 50.

The square root of 84668963 is about 9201.5739414515. The cubic root of 84668963 is about 439.1114350873. Note that the first 3 decimals are identical.

The spelling of 84668963 in words is "eighty-four million, six hundred sixty-eight thousand, nine hundred sixty-three".