76728965 has 8 divisors (see below), whose sum is σ = 92135040. Its totient is φ = 61342992.

The previous prime is 76728961. The next prime is 76728979. The reversal of 76728965 is 56982767.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76728965 - 2² = 76728961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76728961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5312 + ... + 13478.

It is an arithmetic number, because the mean of its divisors is an integer number (11516880).

Almost surely, 2^76728965 is an apocalyptic number.

It is an amenable number.

76728965 is a deficient number, since it is larger than the sum of its proper divisors (15406075).

76728965 is a wasteful number, since it uses less digits than its factorization.

76728965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10051.

The product of its digits is 1270080, while the sum is 50.

The square root of 76728965 is about 8759.5071208373. The cubic root of 76728965 is about 424.9323352483.

The spelling of 76728965 in words is "seventy-six million, seven hundred twenty-eight thousand, nine hundred sixty-five".