686583145 has 16 divisors (see below), whose sum is σ = 868078080. Its totient is φ = 519868800.

The previous prime is 686583127. The next prime is 686583151. The reversal of 686583145 is 541385686.

It is not a de Polignac number, because 686583145 - 2⁷ = 686583017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 686583095 and 686583104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122760 + ... + 128230.

It is an arithmetic number, because the mean of its divisors is an integer number (54254880).

Almost surely, 2^686583145 is an apocalyptic number.

It is an amenable number.

686583145 is a deficient number, since it is larger than the sum of its proper divisors (181494935).

686583145 is a wasteful number, since it uses less digits than its factorization.

686583145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816.

The product of its digits is 691200, while the sum is 46.

The square root of 686583145 is about 26202.7316324081. The cubic root of 686583145 is about 882.1945677744.

The spelling of 686583145 in words is "six hundred eighty-six million, five hundred eighty-three thousand, one hundred forty-five".