349908863 has 4 divisors (see below), whose sum is σ = 349992840. Its totient is φ = 349824888.

The previous prime is 349908851. The next prime is 349908869. The reversal of 349908863 is 368809943.

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

It is a cyclic number.

It is not a de Polignac number, because 349908863 - 2⁴ = 349908847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349908869) 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, 35393 + ... + 44186.

It is an arithmetic number, because the mean of its divisors is an integer number (87498210).

Almost surely, 2^349908863 is an apocalyptic number.

349908863 is a deficient number, since it is larger than the sum of its proper divisors (83977).

349908863 is an equidigital number, since it uses as much as digits as its factorization.

349908863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83976.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 349908863 is about 18705.8510365073. The cubic root of 349908863 is about 704.6686993570.

The spelling of 349908863 in words is "three hundred forty-nine million, nine hundred eight thousand, eight hundred sixty-three".