686288141 has 8 divisors (see below), whose sum is σ = 855632064. Its totient is φ = 534769920.

The previous prime is 686288131. The next prime is 686288143. The reversal of 686288141 is 141882686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 686288141 - 2¹⁴ = 686271757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 686288092 and 686288101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686288143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4456340 + ... + 4456493.

It is an arithmetic number, because the mean of its divisors is an integer number (106954008).

Almost surely, 2^686288141 is an apocalyptic number.

It is an amenable number.

686288141 is a deficient number, since it is larger than the sum of its proper divisors (169343923).

686288141 is a wasteful number, since it uses less digits than its factorization.

686288141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912851.

The product of its digits is 147456, while the sum is 44.

The square root of 686288141 is about 26197.1017671803. The cubic root of 686288141 is about 882.0681989041.

The spelling of 686288141 in words is "six hundred eighty-six million, two hundred eighty-eight thousand, one hundred forty-one".