999949349 has 4 divisors (see below), whose sum is σ = 1142799264. Its totient is φ = 857099436.

The previous prime is 999949289. The next prime is 999949381. The reversal of 999949349 is 943949999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 999949349 - 2²⁴ = 983172133 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 (999949399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71424947 + ... + 71424960.

It is an arithmetic number, because the mean of its divisors is an integer number (285699816).

Almost surely, 2^999949349 is an apocalyptic number.

It is an amenable number.

999949349 is a deficient number, since it is larger than the sum of its proper divisors (142849915).

999949349 is a wasteful number, since it uses less digits than its factorization.

999949349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142849914.

The product of its digits is 25509168, while the sum is 65.

The square root of 999949349 is about 31621.9757289136. The cubic root of 999949349 is about 999.9831160483.

The spelling of 999949349 in words is "nine hundred ninety-nine million, nine hundred forty-nine thousand, three hundred forty-nine".