686362043 has 2 divisors, whose sum is σ = 686362044. Its totient is φ = 686362042.

The previous prime is 686362007. The next prime is 686362069. The reversal of 686362043 is 340263686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 686362043 - 2¹⁰ = 686361019 is a prime.

It is a super-2 number, since 2×686362043² = 942185708142267698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 686361988 and 686362006.

It is not a weakly prime, because it can be changed into another prime (686362843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343181021 + 343181022.

It is an arithmetic number, because the mean of its divisors is an integer number (343181022).

Almost surely, 2^686362043 is an apocalyptic number.

686362043 is a deficient number, since it is larger than the sum of its proper divisors (1).

686362043 is an equidigital number, since it uses as much as digits as its factorization.

686362043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 686362043 is about 26198.5122287507. The cubic root of 686362043 is about 882.0998592037.

It can be divided in two parts, 6863620 and 43, that multiplied together give a triangular number (295135660 = T₂₄₂₉₅).

The spelling of 686362043 in words is "six hundred eighty-six million, three hundred sixty-two thousand, forty-three".