349829705 has 4 divisors (see below), whose sum is σ = 419795652. Its totient is φ = 279863760.

The previous prime is 349829687. The next prime is 349829803. The reversal of 349829705 is 507928943.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 208600249 + 141229456 = 14443^2 + 11884^2 .

It is not a de Polignac number, because 349829705 - 2¹⁰ = 349828681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 349829705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34982966 + ... + 34982975.

It is an arithmetic number, because the mean of its divisors is an integer number (104948913).

Almost surely, 2^349829705 is an apocalyptic number.

It is an amenable number.

349829705 is a deficient number, since it is larger than the sum of its proper divisors (69965947).

349829705 is an equidigital number, since it uses as much as digits as its factorization.

349829705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69965946.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 349829705 is about 18703.7350547959. The cubic root of 349829705 is about 704.6155575463.

The spelling of 349829705 in words is "three hundred forty-nine million, eight hundred twenty-nine thousand, seven hundred five".