349787 has 2 divisors, whose sum is σ = 349788. Its totient is φ = 349786.

The previous prime is 349759. The next prime is 349793. The reversal of 349787 is 787943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 349787 - 2¹⁰ = 348763 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349787.

It is not a weakly prime, because it can be changed into another prime (349717) 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, 174893 + 174894.

It is an arithmetic number, because the mean of its divisors is an integer number (174894).

2³⁴⁹⁷⁸⁷ is an apocalyptic number.

349787 is a deficient number, since it is larger than the sum of its proper divisors (1).

349787 is an equidigital number, since it uses as much as digits as its factorization.

349787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 349787 is about 591.4279330569. The cubic root of 349787 is about 70.4586884708.

The spelling of 349787 in words is "three hundred forty-nine thousand, seven hundred eighty-seven".