326226861 has 12 divisors (see below), whose sum is σ = 471378492. Its totient is φ = 217409856.

The previous prime is 326226851. The next prime is 326226877. The reversal of 326226861 is 168622623.

It can be written as a sum of positive squares in 2 ways, for example, as 26071236 + 300155625 = 5106^2 + 17325^2 .

It is not a de Polignac number, because 326226861 - 2²³ = 317838253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326226851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37825 + ... + 45641.

It is an arithmetic number, because the mean of its divisors is an integer number (39281541).

Almost surely, 2^326226861 is an apocalyptic number.

It is an amenable number.

326226861 is a deficient number, since it is larger than the sum of its proper divisors (145151631).

326226861 is a wasteful number, since it uses less digits than its factorization.

326226861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12460 (or 12457 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 326226861 is about 18061.7513270447. The cubic root of 326226861 is about 688.3984848185.

The spelling of 326226861 in words is "three hundred twenty-six million, two hundred twenty-six thousand, eight hundred sixty-one".