349676905 has 16 divisors (see below), whose sum is σ = 433818000. Its totient is φ = 270397440.

The previous prime is 349676897. The next prime is 349676911. The reversal of 349676905 is 509676943.

It can be written as a sum of positive squares in 8 ways, for example, as 61763881 + 287913024 = 7859^2 + 16968^2 .

It is not a de Polignac number, because 349676905 - 2³ = 349676897 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14521 + ... + 30169.

It is an arithmetic number, because the mean of its divisors is an integer number (27113625).

Almost surely, 2^349676905 is an apocalyptic number.

It is an amenable number.

349676905 is a deficient number, since it is larger than the sum of its proper divisors (84141095).

349676905 is a wasteful number, since it uses less digits than its factorization.

349676905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15804.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The square root of 349676905 is about 18699.6498630322. The cubic root of 349676905 is about 704.5129543511.

The spelling of 349676905 in words is "three hundred forty-nine million, six hundred seventy-six thousand, nine hundred five".