76382728 has 8 divisors (see below), whose sum is σ = 143217630. Its totient is φ = 38191360.

The previous prime is 76382711. The next prime is 76382741. The reversal of 76382728 is 82728367.

It can be written as a sum of positive squares in only one way, i.e., 44595684 + 31787044 = 6678^2 + 5638^2 .

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

It is a super-2 number, since 2×76382728² = 11668642273443968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4773913 + ... + 4773928.

Almost surely, 2^76382728 is an apocalyptic number.

It is an amenable number.

76382728 is a deficient number, since it is larger than the sum of its proper divisors (66834902).

76382728 is a wasteful number, since it uses less digits than its factorization.

76382728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547847 (or 9547843 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 76382728 is about 8739.7212770202. The cubic root of 76382728 is about 424.2922069047.

The spelling of 76382728 in words is "seventy-six million, three hundred eighty-two thousand, seven hundred twenty-eight".