686340310 has 16 divisors (see below), whose sum is σ = 1275265152. Its totient is φ = 265680000.

The previous prime is 686340307. The next prime is 686340313. The reversal of 686340310 is 13043686.

686340310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (686340307) and next prime (686340313).

It is a super-2 number, since 2×686340310² = 942126042261792200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686340313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106691 + ... + 1107310.

It is an arithmetic number, because the mean of its divisors is an integer number (79704072).

Almost surely, 2^686340310 is an apocalyptic number.

686340310 is a deficient number, since it is larger than the sum of its proper divisors (588924842).

686340310 is a wasteful number, since it uses less digits than its factorization.

686340310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214039.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 686340310 is about 26198.0974500058. The cubic root of 686340310 is about 882.0905488216.

Adding to 686340310 its reverse (13043686), we get a palindrome (699383996).

The spelling of 686340310 in words is "six hundred eighty-six million, three hundred forty thousand, three hundred ten".