322999493 has 2 divisors, whose sum is σ = 322999494. Its totient is φ = 322999492.

The previous prime is 322999489. The next prime is 322999553. The reversal of 322999493 is 394999223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290941249 + 32058244 = 17057^2 + 5662^2 .

It is an emirp because it is prime and its reverse (394999223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 322999493 - 2² = 322999489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322999483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161499746 + 161499747.

It is an arithmetic number, because the mean of its divisors is an integer number (161499747).

Almost surely, 2^322999493 is an apocalyptic number.

It is an amenable number.

322999493 is a deficient number, since it is larger than the sum of its proper divisors (1).

322999493 is an equidigital number, since it uses as much as digits as its factorization.

322999493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 50.

The square root of 322999493 is about 17972.1866504886. The cubic root of 322999493 is about 686.1208445917.

The spelling of 322999493 in words is "three hundred twenty-two million, nine hundred ninety-nine thousand, four hundred ninety-three".