84679668 has 36 divisors (see below), whose sum is σ = 221981760. Its totient is φ = 28226232.

The previous prime is 84679657. The next prime is 84679697. The reversal of 84679668 is 86697648.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 42588 + ... + 44531.

It is an arithmetic number, because the mean of its divisors is an integer number (6166160).

Almost surely, 2^84679668 is an apocalyptic number.

It is an amenable number.

84679668 is an abundant number, since it is smaller than the sum of its proper divisors (137302092).

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

84679668 is a wasteful number, since it uses less digits than its factorization.

84679668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87138 (or 87124 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 84679668 is about 9202.1556170280. The cubic root of 84679668 is about 439.1299404509.

The spelling of 84679668 in words is "eighty-four million, six hundred seventy-nine thousand, six hundred sixty-eight".