349967709 has 80 divisors (see below), whose sum is σ = 652664320. Its totient is φ = 181958400.

The previous prime is 349967693. The next prime is 349967731. The reversal of 349967709 is 907769943.

It is not a de Polignac number, because 349967709 - 2⁴ = 349967693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349967749) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 582009 + ... + 582609.

It is an arithmetic number, because the mean of its divisors is an integer number (8158304).

Almost surely, 2^349967709 is an apocalyptic number.

349967709 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

349967709 is a deficient number, since it is larger than the sum of its proper divisors (302696611).

349967709 is a wasteful number, since it uses less digits than its factorization.

349967709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The square root of 349967709 is about 18707.4239006871. The cubic root of 349967709 is about 704.7081997472.

The spelling of 349967709 in words is "three hundred forty-nine million, nine hundred sixty-seven thousand, seven hundred nine".