326861849 has 2 divisors, whose sum is σ = 326861850. Its totient is φ = 326861848.

The previous prime is 326861837. The next prime is 326861863. The reversal of 326861849 is 948168623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320947225 + 5914624 = 17915^2 + 2432^2 .

It is a cyclic number.

It is not a de Polignac number, because 326861849 - 2⁴ = 326861833 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (326861819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163430924 + 163430925.

It is an arithmetic number, because the mean of its divisors is an integer number (163430925).

Almost surely, 2^326861849 is an apocalyptic number.

It is an amenable number.

326861849 is a deficient number, since it is larger than the sum of its proper divisors (1).

326861849 is an equidigital number, since it uses as much as digits as its factorization.

326861849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 326861849 is about 18079.3210326052. The cubic root of 326861849 is about 688.8448423692.

The spelling of 326861849 in words is "three hundred twenty-six million, eight hundred sixty-one thousand, eight hundred forty-nine".