353665073 has 2 divisors, whose sum is σ = 353665074. Its totient is φ = 353665072.

The previous prime is 353665049. The next prime is 353665087. The reversal of 353665073 is 370566353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219869584 + 133795489 = 14828^2 + 11567^2 .

It is an emirp because it is prime and its reverse (370566353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 353665073 - 2⁶ = 353665009 is a prime.

It is not a weakly prime, because it can be changed into another prime (353665003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176832536 + 176832537.

It is an arithmetic number, because the mean of its divisors is an integer number (176832537).

Almost surely, 2^353665073 is an apocalyptic number.

It is an amenable number.

353665073 is a deficient number, since it is larger than the sum of its proper divisors (1).

353665073 is an equidigital number, since it uses as much as digits as its factorization.

353665073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 38.

The square root of 353665073 is about 18805.9850313670. The cubic root of 353665073 is about 707.1812282860.

The spelling of 353665073 in words is "three hundred fifty-three million, six hundred sixty-five thousand, seventy-three".