686427313 has 16 divisors (see below), whose sum is σ = 813117312. Its totient is φ = 576008400.

The previous prime is 686427283. The next prime is 686427337. The reversal of 686427313 is 313724686.

It is a de Polignac number, because none of the positive numbers 2^k-686427313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686427373) 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 15 ways as a sum of consecutive naturals, for example, 2533 + ... + 37138.

It is an arithmetic number, because the mean of its divisors is an integer number (50819832).

Almost surely, 2^686427313 is an apocalyptic number.

It is an amenable number.

686427313 is a deficient number, since it is larger than the sum of its proper divisors (126689999).

686427313 is a wasteful number, since it uses less digits than its factorization.

686427313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39717 (or 39695 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 686427313 is about 26199.7578805607. The cubic root of 686427313 is about 882.1278195848.

The spelling of 686427313 in words is "six hundred eighty-six million, four hundred twenty-seven thousand, three hundred thirteen".