84881768 has 8 divisors (see below), whose sum is σ = 159153330. Its totient is φ = 42440880.

The previous prime is 84881747. The next prime is 84881773. The reversal of 84881768 is 86718848.

It can be written as a sum of positive squares in only one way, i.e., 64288324 + 20593444 = 8018^2 + 4538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5305103 + ... + 5305118.

Almost surely, 2^84881768 is an apocalyptic number.

It is an amenable number.

84881768 is a deficient number, since it is larger than the sum of its proper divisors (74271562).

84881768 is a wasteful number, since it uses less digits than its factorization.

84881768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610227 (or 10610223 counting only the distinct ones).

The product of its digits is 688128, while the sum is 50.

The square root of 84881768 is about 9213.1301955416. The cubic root of 84881768 is about 439.4790114584.

The spelling of 84881768 in words is "eighty-four million, eight hundred eighty-one thousand, seven hundred sixty-eight".