686383667 has 2 divisors, whose sum is σ = 686383668. Its totient is φ = 686383666.

The previous prime is 686383661. The next prime is 686383699. The reversal of 686383667 is 766383686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 686383667 - 2¹⁸ = 686121523 is a prime.

It is a super-2 number, since 2×686383667² = 942245076648733778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (686383661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343191833 + 343191834.

It is an arithmetic number, because the mean of its divisors is an integer number (343191834).

Almost surely, 2^686383667 is an apocalyptic number.

686383667 is a deficient number, since it is larger than the sum of its proper divisors (1).

686383667 is an equidigital number, since it uses as much as digits as its factorization.

686383667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 53.

The square root of 686383667 is about 26198.9249206909. The cubic root of 686383667 is about 882.1091226953.

The spelling of 686383667 in words is "six hundred eighty-six million, three hundred eighty-three thousand, six hundred sixty-seven".