76568728 has 8 divisors (see below), whose sum is σ = 143566380. Its totient is φ = 38284360.

The previous prime is 76568717. The next prime is 76568777. The reversal of 76568728 is 82786567.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4785538 + ... + 4785553.

Almost surely, 2^76568728 is an apocalyptic number.

It is an amenable number.

76568728 is a deficient number, since it is larger than the sum of its proper divisors (66997652).

76568728 is a wasteful number, since it uses less digits than its factorization.

76568728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571097 (or 9571093 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The square root of 76568728 is about 8750.3558784772. The cubic root of 76568728 is about 424.6363264934.

It can be divided in two parts, 7656 and 8728, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 76568728 in words is "seventy-six million, five hundred sixty-eight thousand, seven hundred twenty-eight".