76068309 has 4 divisors (see below), whose sum is σ = 101424416. Its totient is φ = 50712204.

The previous prime is 76068283. The next prime is 76068329. The reversal of 76068309 is 90386067.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 76068309 - 2⁵ = 76068277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76068329) 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 3 ways as a sum of consecutive naturals, for example, 12678049 + ... + 12678054.

It is an arithmetic number, because the mean of its divisors is an integer number (25356104).

Almost surely, 2^76068309 is an apocalyptic number.

It is an amenable number.

76068309 is a deficient number, since it is larger than the sum of its proper divisors (25356107).

76068309 is a wasteful number, since it uses less digits than its factorization.

76068309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25356106.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 76068309 is about 8721.7147969880. The cubic root of 76068309 is about 423.7092260696.

The spelling of 76068309 in words is "seventy-six million, sixty-eight thousand, three hundred nine".