686769363 has 24 divisors (see below), whose sum is σ = 1150642688. Its totient is φ = 386579952.

The previous prime is 686769361. The next prime is 686769403. The reversal of 686769363 is 363967686.

It is a happy number.

It is not a de Polignac number, because 686769363 - 2¹ = 686769361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686769361) 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, 77131 + ... + 85572.

Almost surely, 2^686769363 is an apocalyptic number.

686769363 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

686769363 is a deficient number, since it is larger than the sum of its proper divisors (463873325).

686769363 is a wasteful number, since it uses less digits than its factorization.

686769363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162783 (or 162780 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The square root of 686769363 is about 26206.2847996430. The cubic root of 686769363 is about 882.2743180854.

The spelling of 686769363 in words is "six hundred eighty-six million, seven hundred sixty-nine thousand, three hundred sixty-three".