348391903 has 2 divisors, whose sum is σ = 348391904. Its totient is φ = 348391902.

The previous prime is 348391837. The next prime is 348391913. The reversal of 348391903 is 309193843.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 348391903 - 2¹⁷ = 348260831 is a prime.

It is a super-2 number, since 2×348391903² = 242753836151922818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348391913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174195951 + 174195952.

It is an arithmetic number, because the mean of its divisors is an integer number (174195952).

Almost surely, 2^348391903 is an apocalyptic number.

348391903 is a deficient number, since it is larger than the sum of its proper divisors (1).

348391903 is an equidigital number, since it uses as much as digits as its factorization.

348391903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 348391903 is about 18665.2592534902. The cubic root of 348391903 is about 703.6489074240.

The spelling of 348391903 in words is "three hundred forty-eight million, three hundred ninety-one thousand, nine hundred three".