349677619 has 4 divisors (see below), whose sum is σ = 350045496. Its totient is φ = 349309744.

The previous prime is 349677599. The next prime is 349677637. The reversal of 349677619 is 916776943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349677619 is a prime.

It is a super-2 number, since 2×349677619² = 244548874459018322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349677659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182509 + ... + 184414.

It is an arithmetic number, because the mean of its divisors is an integer number (87511374).

Almost surely, 2^349677619 is an apocalyptic number.

349677619 is a deficient number, since it is larger than the sum of its proper divisors (367877).

349677619 is an equidigital number, since it uses as much as digits as its factorization.

349677619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367876.

The product of its digits is 1714608, while the sum is 52.

The square root of 349677619 is about 18699.6689542890. The cubic root of 349677619 is about 704.5134338622.

The spelling of 349677619 in words is "three hundred forty-nine million, six hundred seventy-seven thousand, six hundred nineteen".