76868080 has 40 divisors (see below), whose sum is σ = 179176032. Its totient is φ = 30668544.

The previous prime is 76868069. The next prime is 76868081. The reversal of 76868080 is 8086867.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76868081) 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 7 ways as a sum of consecutive naturals, for example, 37974 + ... + 39946.

Almost surely, 2^76868080 is an apocalyptic number.

It is an amenable number.

76868080 is an abundant number, since it is smaller than the sum of its proper divisors (102307952).

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

76868080 is a wasteful number, since it uses less digits than its factorization.

76868080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 76868080 is about 8767.4443254577. Note that the first 3 decimals coincide. The cubic root of 76868080 is about 425.1889909174.

The spelling of 76868080 in words is "seventy-six million, eight hundred sixty-eight thousand, eighty".