84779768 has 16 divisors (see below), whose sum is σ = 159599160. Its totient is φ = 42220000.

The previous prime is 84779741. The next prime is 84779777. The reversal of 84779768 is 86797748.

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 3 ways as a sum of consecutive naturals, for example, 19103 + ... + 23118.

Almost surely, 2^84779768 is an apocalyptic number.

It is an amenable number.

84779768 is a deficient number, since it is larger than the sum of its proper divisors (74819392).

84779768 is a wasteful number, since it uses less digits than its factorization.

84779768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42478 (or 42474 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 56.

The square root of 84779768 is about 9207.5929536443. The cubic root of 84779768 is about 439.3029044336.

The spelling of 84779768 in words is "eighty-four million, seven hundred seventy-nine thousand, seven hundred sixty-eight".