852781887 has 12 divisors (see below), whose sum is σ = 1238180944. Its totient is φ = 565574400.

The previous prime is 852781873. The next prime is 852781903. The reversal of 852781887 is 788187258.

It is not a de Polignac number, because 852781887 - 2¹⁶ = 852716351 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 (852781487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243739 + ... + 247212.

Almost surely, 2^852781887 is an apocalyptic number.

852781887 is a deficient number, since it is larger than the sum of its proper divisors (385399057).

852781887 is a wasteful number, since it uses less digits than its factorization.

852781887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491150 (or 491147 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 54.

The square root of 852781887 is about 29202.4294708505. The cubic root of 852781887 is about 948.3005209439.

The spelling of 852781887 in words is "eight hundred fifty-two million, seven hundred eighty-one thousand, eight hundred eighty-seven".