842938287 has 16 divisors (see below), whose sum is σ = 1183758720. Its totient is φ = 532072800.

The previous prime is 842938259. The next prime is 842938309. The reversal of 842938287 is 782839248.

It is a de Polignac number, because none of the positive numbers 2^k-842938287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842938207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132612 + ... + 138822.

It is an arithmetic number, because the mean of its divisors is an integer number (73984920).

Almost surely, 2^842938287 is an apocalyptic number.

842938287 is a deficient number, since it is larger than the sum of its proper divisors (340820433).

842938287 is a wasteful number, since it uses less digits than its factorization.

842938287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614.

The product of its digits is 1548288, while the sum is 51.

The square root of 842938287 is about 29033.3995081527. The cubic root of 842938287 is about 944.6376696656.

The spelling of 842938287 in words is "eight hundred forty-two million, nine hundred thirty-eight thousand, two hundred eighty-seven".