686342299 has 8 divisors (see below), whose sum is σ = 691376400. Its totient is φ = 681316896.

The previous prime is 686342281. The next prime is 686342311. The reversal of 686342299 is 992243686.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 686342299 - 2¹⁹ = 685818011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686342399) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 304872 + ... + 307114.

It is an arithmetic number, because the mean of its divisors is an integer number (86422050).

Almost surely, 2^686342299 is an apocalyptic number.

686342299 is a deficient number, since it is larger than the sum of its proper divisors (5034101).

686342299 is a wasteful number, since it uses less digits than its factorization.

686342299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349.

The product of its digits is 1119744, while the sum is 49.

The square root of 686342299 is about 26198.1354107501. The cubic root of 686342299 is about 882.0914009141.

The spelling of 686342299 in words is "six hundred eighty-six million, three hundred forty-two thousand, two hundred ninety-nine".