1005316686 has 48 divisors (see below), whose sum is σ = 2393612208. Its totient is φ = 302409600.

The previous prime is 1005316673. The next prime is 1005316691. The reversal of 1005316686 is 6866135001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005316686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8596 + ... + 45656.

It is an arithmetic number, because the mean of its divisors is an integer number (49866921).

Almost surely, 2^1005316686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1005316686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1196806104).

1005316686 is an abundant number, since it is smaller than the sum of its proper divisors (1388295522).

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

1005316686 is a wasteful number, since it uses less digits than its factorization.

1005316686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37217 (or 37214 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1005316686 is about 31706.7293488307. The cubic root of 1005316686 is about 1001.7690971165.

The spelling of 1005316686 in words is "one billion, five million, three hundred sixteen thousand, six hundred eighty-six".