326705864 has 16 divisors (see below), whose sum is σ = 648607500. Its totient is φ = 153743872.

The previous prime is 326705857. The next prime is 326705903. The reversal of 326705864 is 468507623.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 279892900 + 46812964 = 16730^2 + 6842^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200989 + ... + 1201260.

Almost surely, 2^326705864 is an apocalyptic number.

326705864 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

326705864 is a deficient number, since it is larger than the sum of its proper divisors (321901636).

326705864 is a wasteful number, since it uses less digits than its factorization.

326705864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402272 (or 2402268 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 326705864 is about 18075.0066113404. The cubic root of 326705864 is about 688.7352480967.

The spelling of 326705864 in words is "three hundred twenty-six million, seven hundred five thousand, eight hundred sixty-four".