349456689 has 12 divisors (see below), whose sum is σ = 504936016. Its totient is φ = 232894872.

The previous prime is 349456673. The next prime is 349456691. The reversal of 349456689 is 986654943.

It is not a de Polignac number, because 349456689 - 2⁴ = 349456673 is a prime.

It is a Duffinian number.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (349456619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42162 + ... + 49764.

Almost surely, 2^349456689 is an apocalyptic number.

It is an amenable number.

349456689 is a deficient number, since it is larger than the sum of its proper divisors (155479327).

349456689 is a wasteful number, since it uses less digits than its factorization.

349456689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12716 (or 12713 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 349456689 is about 18693.7606970882. The cubic root of 349456689 is about 704.3650296026.

The spelling of 349456689 in words is "three hundred forty-nine million, four hundred fifty-six thousand, six hundred eighty-nine".