352416809 has 2 divisors, whose sum is σ = 352416810. Its totient is φ = 352416808.

The previous prime is 352416797. The next prime is 352416859. The reversal of 352416809 is 908614253.

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., 271326784 + 81090025 = 16472^2 + 9005^2 .

It is an emirp because it is prime and its reverse (908614253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 352416809 - 2⁴ = 352416793 is a prime.

It is not a weakly prime, because it can be changed into another prime (352416859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176208404 + 176208405.

It is an arithmetic number, because the mean of its divisors is an integer number (176208405).

Almost surely, 2^352416809 is an apocalyptic number.

It is an amenable number.

352416809 is a deficient number, since it is larger than the sum of its proper divisors (1).

352416809 is an equidigital number, since it uses as much as digits as its factorization.

352416809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 352416809 is about 18772.7677501215. The cubic root of 352416809 is about 706.3482467128.

The spelling of 352416809 in words is "three hundred fifty-two million, four hundred sixteen thousand, eight hundred nine".