76668928 has 84 divisors (see below), whose sum is σ = 179295552. Its totient is φ = 32686080.

The previous prime is 76668923. The next prime is 76668931. The reversal of 76668928 is 82986667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76668923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401313 + ... + 401503.

Almost surely, 2^76668928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76668928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89647776).

76668928 is an abundant number, since it is smaller than the sum of its proper divisors (102626624).

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

76668928 is an equidigital number, since it uses as much as digits as its factorization.

76668928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 200 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 76668928 is about 8756.0794879900. The cubic root of 76668928 is about 424.8214761162.

The spelling of 76668928 in words is "seventy-six million, six hundred sixty-eight thousand, nine hundred twenty-eight".