368909819 has 2 divisors, whose sum is σ = 368909820. Its totient is φ = 368909818.

The previous prime is 368909797. The next prime is 368909881. The reversal of 368909819 is 918909863.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 368909819 - 2²⁰ = 367861243 is a prime.

It is a super-2 number, since 2×368909819² = 272188909109225522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (368909119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184454909 + 184454910.

It is an arithmetic number, because the mean of its divisors is an integer number (184454910).

Almost surely, 2^368909819 is an apocalyptic number.

368909819 is a deficient number, since it is larger than the sum of its proper divisors (1).

368909819 is an equidigital number, since it uses as much as digits as its factorization.

368909819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 368909819 is about 19207.0252511939. The cubic root of 368909819 is about 717.1996543071.

The spelling of 368909819 in words is "three hundred sixty-eight million, nine hundred nine thousand, eight hundred nineteen".