686967084 has 72 divisors (see below), whose sum is σ = 1771634592. Its totient is φ = 224398080.

The previous prime is 686967077. The next prime is 686967107. The reversal of 686967084 is 480769686.

It is a self number, because there is not a number n which added to its sum of digits gives 686967084.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 453889 + ... + 455399.

It is an arithmetic number, because the mean of its divisors is an integer number (24606036).

Almost surely, 2^686967084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686967084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885817296).

686967084 is an abundant number, since it is smaller than the sum of its proper divisors (1084667508).

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

686967084 is a wasteful number, since it uses less digits than its factorization.

686967084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 686967084 is about 26210.0569247760. The cubic root of 686967084 is about 882.3589789297.

The spelling of 686967084 in words is "six hundred eighty-six million, nine hundred sixty-seven thousand, eighty-four".