323638673 has 6 divisors (see below), whose sum is σ = 343796406. Its totient is φ = 304600832.

The previous prime is 323638649. The next prime is 323638697. The reversal of 323638673 is 376836323.

It is an interprime number because it is at equal distance from previous prime (323638649) and next prime (323638697).

It can be written as a sum of positive squares in 3 ways, for example, as 129231424 + 194407249 = 11368^2 + 13943^2 .

It is not a de Polignac number, because 323638673 - 2¹⁰ = 323637649 is a prime.

It is a super-2 number, since 2×323638673² = 209483981322401858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 323638673.

It is not an unprimeable number, because it can be changed into a prime (323638603) 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 5 ways as a sum of consecutive naturals, for example, 559640 + ... + 560217.

It is an arithmetic number, because the mean of its divisors is an integer number (57299401).

Almost surely, 2^323638673 is an apocalyptic number.

It is an amenable number.

323638673 is a deficient number, since it is larger than the sum of its proper divisors (20157733).

323638673 is a wasteful number, since it uses less digits than its factorization.

323638673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119891 (or 1119874 counting only the distinct ones).

The product of its digits is 326592, while the sum is 41.

The square root of 323638673 is about 17989.9603390335. The cubic root of 323638673 is about 686.5731319429.

The spelling of 323638673 in words is "three hundred twenty-three million, six hundred thirty-eight thousand, six hundred seventy-three".