849011287 has 4 divisors (see below), whose sum is σ = 871957576. Its totient is φ = 826065000.

The previous prime is 849011269. The next prime is 849011299. The reversal of 849011287 is 782110948.

It is a happy number.

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 849011287 - 2¹⁹ = 848486999 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 (849011227) 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, 11473089 + ... + 11473162.

It is an arithmetic number, because the mean of its divisors is an integer number (217989394).

Almost surely, 2^849011287 is an apocalyptic number.

849011287 is a deficient number, since it is larger than the sum of its proper divisors (22946289).

849011287 is a wasteful number, since it uses less digits than its factorization.

849011287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22946288.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 849011287 is about 29137.7982524418. The cubic root of 849011287 is about 946.9008098154.

The spelling of 849011287 in words is "eight hundred forty-nine million, eleven thousand, two hundred eighty-seven".