686481327 has 36 divisors (see below), whose sum is σ = 1181640096. Its totient is φ = 382697280.

The previous prime is 686481311. The next prime is 686481331. The reversal of 686481327 is 723184686.

It is not a de Polignac number, because 686481327 - 2⁴ = 686481311 is a prime.

It is a super-2 number, since 2×686481327² = 942513224639361858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686481377) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 903 + ... + 37064.

It is an arithmetic number, because the mean of its divisors is an integer number (32823336).

Almost surely, 2^686481327 is an apocalyptic number.

686481327 is a deficient number, since it is larger than the sum of its proper divisors (495158769).

686481327 is a wasteful number, since it uses less digits than its factorization.

686481327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38028 (or 38018 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 686481327 is about 26200.7886713358. The cubic root of 686481327 is about 882.1509567771.

The spelling of 686481327 in words is "six hundred eighty-six million, four hundred eighty-one thousand, three hundred twenty-seven".