319793489 has 4 divisors (see below), whose sum is σ = 330109440. Its totient is φ = 309477540.

The previous prime is 319793437. The next prime is 319793533. The reversal of 319793489 is 984397913.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319793489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 319793489.

It is not an unprimeable number, because it can be changed into a prime (319793429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5157929 + ... + 5157990.

It is an arithmetic number, because the mean of its divisors is an integer number (82527360).

Almost surely, 2^319793489 is an apocalyptic number.

It is an amenable number.

319793489 is a deficient number, since it is larger than the sum of its proper divisors (10315951).

319793489 is a wasteful number, since it uses less digits than its factorization.

319793489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10315950.

The product of its digits is 1469664, while the sum is 53.

The square root of 319793489 is about 17882.7707305104. The cubic root of 319793489 is about 683.8432099901.

The spelling of 319793489 in words is "three hundred nineteen million, seven hundred ninety-three thousand, four hundred eighty-nine".