326667949 has 2 divisors, whose sum is σ = 326667950. Its totient is φ = 326667948.

The previous prime is 326667883. The next prime is 326668009. The reversal of 326667949 is 949766623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315311049 + 11356900 = 17757^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 326667949 - 2¹³ = 326659757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 326667896 and 326667905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326667149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163333974 + 163333975.

It is an arithmetic number, because the mean of its divisors is an integer number (163333975).

Almost surely, 2^326667949 is an apocalyptic number.

It is an amenable number.

326667949 is a deficient number, since it is larger than the sum of its proper divisors (1).

326667949 is an equidigital number, since it uses as much as digits as its factorization.

326667949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 52.

The square root of 326667949 is about 18073.9577569496. The cubic root of 326667949 is about 688.7086039395.

The spelling of 326667949 in words is "three hundred twenty-six million, six hundred sixty-seven thousand, nine hundred forty-nine".