868669386 has 32 divisors (see below), whose sum is σ = 1873767168. Its totient is φ = 266884800.

The previous prime is 868669381. The next prime is 868669409. The reversal of 868669386 is 683966868.

It is not an unprimeable number, because it can be changed into a prime (868669381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46735 + ... + 62621.

It is an arithmetic number, because the mean of its divisors is an integer number (58555224).

Almost surely, 2^868669386 is an apocalyptic number.

868669386 is an abundant number, since it is smaller than the sum of its proper divisors (1005097782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868669386 is a wasteful number, since it uses less digits than its factorization.

868669386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16606.

The product of its digits is 17915904, while the sum is 60.

The square root of 868669386 is about 29473.1977566059. The cubic root of 868669386 is about 954.1533338267.

The spelling of 868669386 in words is "eight hundred sixty-eight million, six hundred sixty-nine thousand, three hundred eighty-six".