76320311 has 4 divisors (see below), whose sum is σ = 78181824. Its totient is φ = 74458800.

The previous prime is 76320301. The next prime is 76320317. The reversal of 76320311 is 11302367.

It is a happy number.

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 76320311 - 2¹⁸ = 76058167 is a prime.

It is a super-3 number, since 3×76320311³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76320317) 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, 930695 + ... + 930776.

It is an arithmetic number, because the mean of its divisors is an integer number (19545456).

Almost surely, 2^76320311 is an apocalyptic number.

76320311 is a deficient number, since it is larger than the sum of its proper divisors (1861513).

76320311 is a wasteful number, since it uses less digits than its factorization.

76320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861512.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 76320311 is about 8736.1496667582. The cubic root of 76320311 is about 424.1766037036.

Adding to 76320311 its reverse (11302367), we get a palindrome (87622678).

The spelling of 76320311 in words is "seventy-six million, three hundred twenty thousand, three hundred eleven".