326723473 has 2 divisors, whose sum is σ = 326723474. Its totient is φ = 326723472.

The previous prime is 326723447. The next prime is 326723479. The reversal of 326723473 is 374327623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270668304 + 56055169 = 16452^2 + 7487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326723473 is a prime.

It is not a weakly prime, because it can be changed into another prime (326723479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163361736 + 163361737.

It is an arithmetic number, because the mean of its divisors is an integer number (163361737).

Almost surely, 2^326723473 is an apocalyptic number.

It is an amenable number.

326723473 is a deficient number, since it is larger than the sum of its proper divisors (1).

326723473 is an equidigital number, since it uses as much as digits as its factorization.

326723473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 37.

The square root of 326723473 is about 18075.4937138657. The cubic root of 326723473 is about 688.7476218376.

The spelling of 326723473 in words is "three hundred twenty-six million, seven hundred twenty-three thousand, four hundred seventy-three".