319296639 has 4 divisors (see below), whose sum is σ = 425728856. Its totient is φ = 212864424.

The previous prime is 319296623. The next prime is 319296689. The reversal of 319296639 is 936692913.

It is a happy number.

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

It is not a de Polignac number, because 319296639 - 2⁴ = 319296623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319296689) 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, 53216104 + ... + 53216109.

It is an arithmetic number, because the mean of its divisors is an integer number (106432214).

Almost surely, 2^319296639 is an apocalyptic number.

319296639 is a deficient number, since it is larger than the sum of its proper divisors (106432217).

319296639 is a wasteful number, since it uses less digits than its factorization.

319296639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106432216.

The product of its digits is 472392, while the sum is 48.

The square root of 319296639 is about 17868.8734675692. The cubic root of 319296639 is about 683.4888733910.

The spelling of 319296639 in words is "three hundred nineteen million, two hundred ninety-six thousand, six hundred thirty-nine".