349795817 has 8 divisors (see below), whose sum is σ = 410571456. Its totient is φ = 291721392.

The previous prime is 349795801. The next prime is 349795829. The reversal of 349795817 is 718597943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 349795817 - 2⁴ = 349795801 is a prime.

It is a super-2 number, since 2×349795817² = 244714227181394978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349795867) 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 in 7 ways as a sum of consecutive naturals, for example, 675023 + ... + 675540.

It is an arithmetic number, because the mean of its divisors is an integer number (51321432).

Almost surely, 2^349795817 is an apocalyptic number.

349795817 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

349795817 is a deficient number, since it is larger than the sum of its proper divisors (60775639).

349795817 is a wasteful number, since it uses less digits than its factorization.

349795817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350607.

The product of its digits is 1905120, while the sum is 53.

The square root of 349795817 is about 18702.8291175426. The cubic root of 349795817 is about 704.5928047776.

The spelling of 349795817 in words is "three hundred forty-nine million, seven hundred ninety-five thousand, eight hundred seventeen".