849869419 has 4 divisors (see below), whose sum is σ = 971279344. Its totient is φ = 728459496.

The previous prime is 849869407. The next prime is 849869459. The reversal of 849869419 is 914968948.

It is a happy number.

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 849869419 - 2¹⁵ = 849836651 is a prime.

It is a super-2 number, since 2×849869419² = 1444556058702795122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (849869459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60704952 + ... + 60704965.

It is an arithmetic number, because the mean of its divisors is an integer number (242819836).

Almost surely, 2^849869419 is an apocalyptic number.

849869419 is a deficient number, since it is larger than the sum of its proper divisors (121409925).

849869419 is a wasteful number, since it uses less digits than its factorization.

849869419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121409924.

The product of its digits is 4478976, while the sum is 58.

The square root of 849869419 is about 29152.5199425367. The cubic root of 849869419 is about 947.2197267669.

The spelling of 849869419 in words is "eight hundred forty-nine million, eight hundred sixty-nine thousand, four hundred nineteen".