326670331 has 4 divisors (see below), whose sum is σ = 351798832. Its totient is φ = 301541832.

The previous prime is 326670313. The next prime is 326670389. The reversal of 326670331 is 133076623.

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

It is a cyclic number.

It is not a de Polignac number, because 326670331 - 2¹⁷ = 326539259 is a prime.

It is a super-2 number, since 2×326670331² = 213427010311299122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 326670293 and 326670302.

It is not an unprimeable number, because it can be changed into a prime (326670301) 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, 12564231 + ... + 12564256.

It is an arithmetic number, because the mean of its divisors is an integer number (87949708).

Almost surely, 2^326670331 is an apocalyptic number.

326670331 is a deficient number, since it is larger than the sum of its proper divisors (25128501).

326670331 is a wasteful number, since it uses less digits than its factorization.

326670331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25128500.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 326670331 is about 18074.0236527454. The cubic root of 326670331 is about 688.7102779125.

The spelling of 326670331 in words is "three hundred twenty-six million, six hundred seventy thousand, three hundred thirty-one".