368404009 has 2 divisors, whose sum is σ = 368404010. Its totient is φ = 368404008.

The previous prime is 368403929. The next prime is 368404027. The reversal of 368404009 is 900404863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361114009 + 7290000 = 19003^2 + 2700^2 .

It is a cyclic number.

It is not a de Polignac number, because 368404009 - 2¹¹ = 368401961 is a prime.

It is not a weakly prime, because it can be changed into another prime (368404039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184202004 + 184202005.

It is an arithmetic number, because the mean of its divisors is an integer number (184202005).

Almost surely, 2^368404009 is an apocalyptic number.

It is an amenable number.

368404009 is a deficient number, since it is larger than the sum of its proper divisors (1).

368404009 is an equidigital number, since it uses as much as digits as its factorization.

368404009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 368404009 is about 19193.8534171750. The cubic root of 368404009 is about 716.8717216972.

The spelling of 368404009 in words is "three hundred sixty-eight million, four hundred four thousand, nine".