349985683 has 2 divisors, whose sum is σ = 349985684. Its totient is φ = 349985682.

The previous prime is 349985663. The next prime is 349985723. The reversal of 349985683 is 386589943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349985683 - 2⁵ = 349985651 is a prime.

It is not a weakly prime, because it can be changed into another prime (349985663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174992841 + 174992842.

It is an arithmetic number, because the mean of its divisors is an integer number (174992842).

Almost surely, 2^349985683 is an apocalyptic number.

349985683 is a deficient number, since it is larger than the sum of its proper divisors (1).

349985683 is an equidigital number, since it uses as much as digits as its factorization.

349985683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 55.

The square root of 349985683 is about 18707.9042920366. The cubic root of 349985683 is about 704.7202639158.

The spelling of 349985683 in words is "three hundred forty-nine million, nine hundred eighty-five thousand, six hundred eighty-three".