326742961 has 2 divisors, whose sum is σ = 326742962. Its totient is φ = 326742960.

The previous prime is 326742953. The next prime is 326742989. The reversal of 326742961 is 169247623.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217415025 + 109327936 = 14745^2 + 10456^2 .

It is a cyclic number.

It is not a de Polignac number, because 326742961 - 2³ = 326742953 is a prime.

It is not a weakly prime, because it can be changed into another prime (326749961) 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 as a sum of consecutive naturals, namely, 163371480 + 163371481.

It is an arithmetic number, because the mean of its divisors is an integer number (163371481).

Almost surely, 2^326742961 is an apocalyptic number.

It is an amenable number.

326742961 is a deficient number, since it is larger than the sum of its proper divisors (1).

326742961 is an equidigital number, since it uses as much as digits as its factorization.

326742961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 326742961 is about 18076.0327782398. The cubic root of 326742961 is about 688.7613154224.

The spelling of 326742961 in words is "three hundred twenty-six million, seven hundred forty-two thousand, nine hundred sixty-one".