849989693 has 4 divisors (see below), whose sum is σ = 971416800. Its totient is φ = 728562588.

The previous prime is 849989683. The next prime is 849989711. The reversal of 849989693 is 396989948.

849989693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 849989693 - 2¹⁴ = 849973309 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 (849989653) 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, 60713543 + ... + 60713556.

It is an arithmetic number, because the mean of its divisors is an integer number (242854200).

Almost surely, 2^849989693 is an apocalyptic number.

It is an amenable number.

849989693 is a deficient number, since it is larger than the sum of its proper divisors (121427107).

849989693 is a wasteful number, since it uses less digits than its factorization.

849989693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121427106.

The product of its digits is 30233088, while the sum is 65.

The square root of 849989693 is about 29154.5827100989. The cubic root of 849989693 is about 947.2644083494.

The spelling of 849989693 in words is "eight hundred forty-nine million, nine hundred eighty-nine thousand, six hundred ninety-three".