849158399 has 4 divisors (see below), whose sum is σ = 872108664. Its totient is φ = 826208136.

The previous prime is 849158377. The next prime is 849158419. The reversal of 849158399 is 993851948.

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 849158399 - 2²⁸ = 580722943 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 (849158329) 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, 11475077 + ... + 11475150.

It is an arithmetic number, because the mean of its divisors is an integer number (218027166).

Almost surely, 2^849158399 is an apocalyptic number.

849158399 is a deficient number, since it is larger than the sum of its proper divisors (22950265).

849158399 is a wasteful number, since it uses less digits than its factorization.

849158399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22950264.

The product of its digits is 2799360, while the sum is 56.

The square root of 849158399 is about 29140.3225617013. The cubic root of 849158399 is about 946.9554979093.

The spelling of 849158399 in words is "eight hundred forty-nine million, one hundred fifty-eight thousand, three hundred ninety-nine".