686383699 has 2 divisors, whose sum is σ = 686383700. Its totient is φ = 686383698.

The previous prime is 686383667. The next prime is 686383703. The reversal of 686383699 is 996383686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 686383699 - 2⁵ = 686383667 is a prime.

It is a super-2 number, since 2×686383699² = 942245164505845202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (686383099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343191849 + 343191850.

It is an arithmetic number, because the mean of its divisors is an integer number (343191850).

Almost surely, 2^686383699 is an apocalyptic number.

686383699 is a deficient number, since it is larger than the sum of its proper divisors (1).

686383699 is an equidigital number, since it uses as much as digits as its factorization.

686383699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 58.

The square root of 686383699 is about 26198.9255314030. The cubic root of 686383699 is about 882.1091364036.

The spelling of 686383699 in words is "six hundred eighty-six million, three hundred eighty-three thousand, six hundred ninety-nine".