323438723 has 4 divisors (see below), whose sum is σ = 324207408. Its totient is φ = 322670040.

The previous prime is 323438671. The next prime is 323438743. The reversal of 323438723 is 327834323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327834323 = 2423 ⋅135301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323438723 is a prime.

It is a super-2 number, since 2×323438723² = 209225215071741458, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323438743) 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, 383711 + ... + 384552.

It is an arithmetic number, because the mean of its divisors is an integer number (81051852).

Almost surely, 2^323438723 is an apocalyptic number.

323438723 is a deficient number, since it is larger than the sum of its proper divisors (768685).

323438723 is an equidigital number, since it uses as much as digits as its factorization.

323438723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768684.

The product of its digits is 72576, while the sum is 35.

The square root of 323438723 is about 17984.4022141410. The cubic root of 323438723 is about 686.4317102585.

The spelling of 323438723 in words is "three hundred twenty-three million, four hundred thirty-eight thousand, seven hundred twenty-three".