319820097 has 4 divisors (see below), whose sum is σ = 426426800. Its totient is φ = 213213396.

The previous prime is 319820089. The next prime is 319820117. The reversal of 319820097 is 790028913.

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 319820097 - 2³ = 319820089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319820797) 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, 53303347 + ... + 53303352.

It is an arithmetic number, because the mean of its divisors is an integer number (106606700).

Almost surely, 2^319820097 is an apocalyptic number.

It is an amenable number.

319820097 is a deficient number, since it is larger than the sum of its proper divisors (106606703).

319820097 is a wasteful number, since it uses less digits than its factorization.

319820097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106606702.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 319820097 is about 17883.5146713391. The cubic root of 319820097 is about 683.8621755581.

The spelling of 319820097 in words is "three hundred nineteen million, eight hundred twenty thousand, ninety-seven".