867885663 has 16 divisors (see below), whose sum is σ = 1187424000. Its totient is φ = 563517120.

The previous prime is 867885661. The next prime is 867885677. The reversal of 867885663 is 366588768.

It is a happy number.

It is not a de Polignac number, because 867885663 - 2¹ = 867885661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867885661) 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, 70438 + ... + 81836.

It is an arithmetic number, because the mean of its divisors is an integer number (74214000).

Almost surely, 2^867885663 is an apocalyptic number.

867885663 is a deficient number, since it is larger than the sum of its proper divisors (319538337).

867885663 is a wasteful number, since it uses less digits than its factorization.

867885663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12062.

The product of its digits is 11612160, while the sum is 57.

The square root of 867885663 is about 29459.8992360802. The cubic root of 867885663 is about 953.8662983037.

The spelling of 867885663 in words is "eight hundred sixty-seven million, eight hundred eighty-five thousand, six hundred sixty-three".