326604013 has 4 divisors (see below), whose sum is σ = 329494428. Its totient is φ = 323713600.

The previous prime is 326604001. The next prime is 326604037. The reversal of 326604013 is 310406623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310406623 = 151 ⋅2055673.

It can be written as a sum of positive squares in 2 ways, for example, as 141562404 + 185041609 = 11898^2 + 13603^2 .

It is a cyclic number.

It is not a de Polignac number, because 326604013 - 2¹³ = 326595821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326604043) 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, 1445038 + ... + 1445263.

It is an arithmetic number, because the mean of its divisors is an integer number (82373607).

Almost surely, 2^326604013 is an apocalyptic number.

It is an amenable number.

326604013 is a deficient number, since it is larger than the sum of its proper divisors (2890415).

326604013 is a wasteful number, since it uses less digits than its factorization.

326604013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890414.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 326604013 is about 18072.1889377020. The cubic root of 326604013 is about 688.6636692727.

The spelling of 326604013 in words is "three hundred twenty-six million, six hundred four thousand, thirteen".