349023899 has 4 divisors (see below), whose sum is σ = 398884464. Its totient is φ = 299163336.

The previous prime is 349023893. The next prime is 349023907. The reversal of 349023899 is 998320943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998320943 = 197 ⋅5067619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349023899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349023893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24930272 + ... + 24930285.

It is an arithmetic number, because the mean of its divisors is an integer number (99721116).

Almost surely, 2^349023899 is an apocalyptic number.

349023899 is a deficient number, since it is larger than the sum of its proper divisors (49860565).

349023899 is an equidigital number, since it uses as much as digits as its factorization.

349023899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49860564.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 349023899 is about 18682.1813233894. The cubic root of 349023899 is about 704.0741322535.

The spelling of 349023899 in words is "three hundred forty-nine million, twenty-three thousand, eight hundred ninety-nine".