76805039 has 4 divisors (see below), whose sum is σ = 78064200. Its totient is φ = 75545880.

The previous prime is 76805033. The next prime is 76805041. The reversal of 76805039 is 93050867.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76805039 - 2¹² = 76800943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76804993 and 76805011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76805033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629489 + ... + 629610.

It is an arithmetic number, because the mean of its divisors is an integer number (19516050).

Almost surely, 2^76805039 is an apocalyptic number.

76805039 is a deficient number, since it is larger than the sum of its proper divisors (1259161).

76805039 is a wasteful number, since it uses less digits than its factorization.

76805039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259160.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 76805039 is about 8763.8484126553. The cubic root of 76805039 is about 425.0727238873.

The spelling of 76805039 in words is "seventy-six million, eight hundred five thousand, thirty-nine".