349716761 has 4 divisors (see below), whose sum is σ = 349807632. Its totient is φ = 349625892.

The previous prime is 349716743. The next prime is 349716779. The reversal of 349716761 is 167617943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (349716743) and next prime (349716779).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349716761 is a prime.

It is a super-2 number, since 2×349716761² = 244603625848662242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349716461) 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 in 3 ways as a sum of consecutive naturals, for example, 39395 + ... + 47448.

It is an arithmetic number, because the mean of its divisors is an integer number (87451908).

Almost surely, 2^349716761 is an apocalyptic number.

It is an amenable number.

349716761 is a deficient number, since it is larger than the sum of its proper divisors (90871).

349716761 is an equidigital number, since it uses as much as digits as its factorization.

349716761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90870.

The product of its digits is 190512, while the sum is 44.

The square root of 349716761 is about 18700.7155210703. The cubic root of 349716761 is about 704.5397200131.

The spelling of 349716761 in words is "three hundred forty-nine million, seven hundred sixteen thousand, seven hundred sixty-one".