322912913 has 4 divisors (see below), whose sum is σ = 323009520. Its totient is φ = 322816308.

The previous prime is 322912907. The next prime is 322912963. The reversal of 322912913 is 319219223.

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, and also an emirpimes, since its reverse is a distinct semiprime: 319219223 = 2671 ⋅119513.

It is a cyclic number.

It is not a de Polignac number, because 322912913 - 2⁴ = 322912897 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 322912913.

It is not an unprimeable number, because it can be changed into a prime (322912963) 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, 43103 + ... + 50036.

It is an arithmetic number, because the mean of its divisors is an integer number (80752380).

Almost surely, 2^322912913 is an apocalyptic number.

It is an amenable number.

322912913 is a deficient number, since it is larger than the sum of its proper divisors (96607).

322912913 is an equidigital number, since it uses as much as digits as its factorization.

322912913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96606.

The product of its digits is 5832, while the sum is 32.

The square root of 322912913 is about 17969.7777671289. Note that the first 4 decimals coincide. The cubic root of 322912913 is about 686.0595342258.

The spelling of 322912913 in words is "three hundred twenty-two million, nine hundred twelve thousand, nine hundred thirteen".