76750729 has 8 divisors (see below), whose sum is σ = 85770720. Its totient is φ = 68071200.

The previous prime is 76750721. The next prime is 76750763. The reversal of 76750729 is 92705767.

It is a happy number.

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 76750729 - 2³ = 76750721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76750721) 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, 84639 + ... + 85540.

It is an arithmetic number, because the mean of its divisors is an integer number (10721340).

Almost surely, 2^76750729 is an apocalyptic number.

It is an amenable number.

76750729 is a deficient number, since it is larger than the sum of its proper divisors (9019991).

76750729 is a wasteful number, since it uses less digits than its factorization.

76750729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170231.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 76750729 is about 8760.7493400964. The cubic root of 76750729 is about 424.9725084870.

The spelling of 76750729 in words is "seventy-six million, seven hundred fifty thousand, seven hundred twenty-nine".