686464130 has 32 divisors (see below), whose sum is σ = 1349353728. Its totient is φ = 249366400.

The previous prime is 686464099. The next prime is 686464147. The reversal of 686464130 is 31464686.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 128615 + ... + 133845.

It is an arithmetic number, because the mean of its divisors is an integer number (42167304).

Almost surely, 2^686464130 is an apocalyptic number.

686464130 is a deficient number, since it is larger than the sum of its proper divisors (662889598).

686464130 is a wasteful number, since it uses less digits than its factorization.

686464130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 686464130 is about 26200.4604921364. The cubic root of 686464130 is about 882.1435904798.

The spelling of 686464130 in words is "six hundred eighty-six million, four hundred sixty-four thousand, one hundred thirty".