686969010 has 192 divisors, whose sum is σ = 2258710272. Its totient is φ = 140963328.

The previous prime is 686968999. The next prime is 686969027. The reversal of 686969010 is 10969686.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 95 ways as a sum of consecutive naturals, for example, 301897 + ... + 304163.

It is an arithmetic number, because the mean of its divisors is an integer number (11764116).

Almost surely, 2^686969010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686969010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129355136).

686969010 is an abundant number, since it is smaller than the sum of its proper divisors (1571741262).

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

686969010 is a wasteful number, since it uses less digits than its factorization.

686969010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337 (or 2334 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 686969010 is about 26210.0936663721. The cubic root of 686969010 is about 882.3598035309.

The spelling of 686969010 in words is "six hundred eighty-six million, nine hundred sixty-nine thousand, ten".