326713081 has 4 divisors (see below), whose sum is σ = 326758564. Its totient is φ = 326667600.

The previous prime is 326713069. The next prime is 326713099. The reversal of 326713081 is 180317623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271953081 + 54760000 = 16491^2 + 7400^2 .

It is a cyclic number.

It is not a de Polignac number, because 326713081 - 2²⁷ = 192495353 is a prime.

It is a super-2 number, since 2×326713081² = 213482874593025122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326713001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9330 + ... + 27211.

It is an arithmetic number, because the mean of its divisors is an integer number (81689641).

Almost surely, 2^326713081 is an apocalyptic number.

It is an amenable number.

326713081 is a deficient number, since it is larger than the sum of its proper divisors (45483).

326713081 is an equidigital number, since it uses as much as digits as its factorization.

326713081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45482.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 326713081 is about 18075.2062505522. The cubic root of 326713081 is about 688.7403194940.

The spelling of 326713081 in words is "three hundred twenty-six million, seven hundred thirteen thousand, eighty-one".