849690693 has 6 divisors (see below), whose sum is σ = 1227331014. Its totient is φ = 566460456.

The previous prime is 849690637. The next prime is 849690703. The reversal of 849690693 is 396096948.

It is a happy number.

849690693 is a `hidden beast` number, since 8 + 496 + 90 + 69 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 524501604 + 325189089 = 22902^2 + 18033^2 .

It is not a de Polignac number, because 849690693 - 2⁶ = 849690629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849690613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47205030 + ... + 47205047.

It is an arithmetic number, because the mean of its divisors is an integer number (204555169).

Almost surely, 2^849690693 is an apocalyptic number.

It is an amenable number.

849690693 is a deficient number, since it is larger than the sum of its proper divisors (377640321).

849690693 is a wasteful number, since it uses less digits than its factorization.

849690693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94410083 (or 94410080 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 849690693 is about 29149.4544202803. The cubic root of 849690693 is about 947.1533225807.

The spelling of 849690693 in words is "eight hundred forty-nine million, six hundred ninety thousand, six hundred ninety-three".