849972277 has 24 divisors (see below), whose sum is σ = 1135412640. Its totient is φ = 627449760.

The previous prime is 849972257. The next prime is 849972283. The reversal of 849972277 is 772279948.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-849972277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849972257) 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, 31258 + ... + 51739.

It is an arithmetic number, because the mean of its divisors is an integer number (47308860).

Almost surely, 2^849972277 is an apocalyptic number.

It is an amenable number.

849972277 is a deficient number, since it is larger than the sum of its proper divisors (285440363).

849972277 is a wasteful number, since it uses less digits than its factorization.

849972277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83041 (or 83034 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 55.

The square root of 849972277 is about 29154.2840248221. The cubic root of 849972277 is about 947.2579385966.

The spelling of 849972277 in words is "eight hundred forty-nine million, nine hundred seventy-two thousand, two hundred seventy-seven".