849241917 has 24 divisors (see below), whose sum is σ = 1292765760. Its totient is φ = 535731840.

The previous prime is 849241909. The next prime is 849241933. The reversal of 849241917 is 719142948.

It is a happy number.

It is not a de Polignac number, because 849241917 - 2³ = 849241909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849241907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173893 + ... + 178709.

It is an arithmetic number, because the mean of its divisors is an integer number (53865240).

Almost surely, 2^849241917 is an apocalyptic number.

It is an amenable number.

849241917 is a deficient number, since it is larger than the sum of its proper divisors (443523843).

849241917 is a wasteful number, since it uses less digits than its factorization.

849241917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873 (or 5870 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 849241917 is about 29141.7555579618. The cubic root of 849241917 is about 946.9865424654.

The spelling of 849241917 in words is "eight hundred forty-nine million, two hundred forty-one thousand, nine hundred seventeen".