349903 has 2 divisors, whose sum is σ = 349904. Its totient is φ = 349902.

The previous prime is 349871. The next prime is 349907. The reversal of 349903 is 309943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 349903 - 2⁵ = 349871 is a prime.

349903 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174951 + 174952.

It is an arithmetic number, because the mean of its divisors is an integer number (174952).

2³⁴⁹⁹⁰³ is an apocalyptic number.

349903 is a deficient number, since it is larger than the sum of its proper divisors (1).

349903 is an equidigital number, since it uses as much as digits as its factorization.

349903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 349903 is about 591.5259926664. The cubic root of 349903 is about 70.4664763574.

The spelling of 349903 in words is "three hundred forty-nine thousand, nine hundred three".