686303343 has 24 divisors (see below), whose sum is σ = 1110681936. Its totient is φ = 404697600.

The previous prime is 686303341. The next prime is 686303393. The reversal of 686303343 is 343303686.

It is a happy number.

686303343 is a `hidden beast` number, since 6 + 8 + 6 + 303 + 343 = 666.

It is not a de Polignac number, because 686303343 - 2¹ = 686303341 is a prime.

It is a super-2 number, since 2×686303343² = 942024557225951298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 686303298 and 686303307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686303341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90018 + ... + 97343.

It is an arithmetic number, because the mean of its divisors is an integer number (46278414).

Almost surely, 2^686303343 is an apocalyptic number.

686303343 is a deficient number, since it is larger than the sum of its proper divisors (424378593).

686303343 is a wasteful number, since it uses less digits than its factorization.

686303343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187415 (or 187412 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The square root of 686303343 is about 26197.3919121732. The cubic root of 686303343 is about 882.0747117671.

The spelling of 686303343 in words is "six hundred eighty-six million, three hundred three thousand, three hundred forty-three".