349000187 has 2 divisors, whose sum is σ = 349000188. Its totient is φ = 349000186.

The previous prime is 349000121. The next prime is 349000207. The reversal of 349000187 is 781000943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 349000187 - 2¹⁸ = 348738043 is a prime.

It is a super-2 number, since 2×349000187² = 243602261052069938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (349000087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174500093 + 174500094.

It is an arithmetic number, because the mean of its divisors is an integer number (174500094).

Almost surely, 2^349000187 is an apocalyptic number.

349000187 is a deficient number, since it is larger than the sum of its proper divisors (1).

349000187 is an equidigital number, since it uses as much as digits as its factorization.

349000187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 349000187 is about 18681.5466972090. The cubic root of 349000187 is about 704.0581874200.

The spelling of 349000187 in words is "three hundred forty-nine million, one hundred eighty-seven", and thus it is an aban number.