349876665 has 40 divisors (see below), whose sum is σ = 630609408. Its totient is φ = 185582880.

The previous prime is 349876661. The next prime is 349876673. The reversal of 349876665 is 566678943.

It is not a de Polignac number, because 349876665 - 2² = 349876661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349876661) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 75094 + ... + 79616.

Almost surely, 2^349876665 is an apocalyptic number.

It is an amenable number.

349876665 is a deficient number, since it is larger than the sum of its proper divisors (280732743).

349876665 is a wasteful number, since it uses less digits than its factorization.

349876665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731 (or 4722 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 349876665 is about 18704.9903769021. The cubic root of 349876665 is about 704.6470845680.

The spelling of 349876665 in words is "three hundred forty-nine million, eight hundred seventy-six thousand, six hundred sixty-five".