686201088 has 72 divisors (see below), whose sum is σ = 1842690528. Its totient is φ = 226680832.

The previous prime is 686201063. The next prime is 686201099. The reversal of 686201088 is 880102686.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82831 + ... + 90737.

It is an arithmetic number, because the mean of its divisors is an integer number (25592924).

Almost surely, 2^686201088 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 686201088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921345264).

686201088 is an abundant number, since it is smaller than the sum of its proper divisors (1156489440).

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

686201088 is a wasteful number, since it uses less digits than its factorization.

686201088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8039 (or 8025 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 686201088 is about 26195.4402138998. The cubic root of 686201088 is about 882.0309016790.

The spelling of 686201088 in words is "six hundred eighty-six million, two hundred one thousand, eighty-eight".