867859655 has 16 divisors (see below), whose sum is σ = 1160218080. Its totient is φ = 618780288.

The previous prime is 867859649. The next prime is 867859687. The reversal of 867859655 is 556958768.

It is a cyclic number.

It is not a de Polignac number, because 867859655 - 2¹⁴ = 867843271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 867859594 and 867859603.

It is a congruent number.

It is an unprimeable number.

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, 228317 + ... + 232086.

It is an arithmetic number, because the mean of its divisors is an integer number (72513630).

Almost surely, 2^867859655 is an apocalyptic number.

867859655 is a deficient number, since it is larger than the sum of its proper divisors (292358425).

867859655 is a wasteful number, since it uses less digits than its factorization.

867859655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460450.

The product of its digits is 18144000, while the sum is 59.

The square root of 867859655 is about 29459.4578191792. The cubic root of 867859655 is about 953.8567700123.

The spelling of 867859655 in words is "eight hundred sixty-seven million, eight hundred fifty-nine thousand, six hundred fifty-five".