682565009 has 16 divisors (see below), whose sum is σ = 786728448. Its totient is φ = 580087872.

The previous prime is 682564999. The next prime is 682565029. The reversal of 682565009 is 900565286.

682565009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 682565009 - 2²⁸ = 414129553 is a prime.

It is a super-2 number, since 2×682565009² = 931789983022340162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (682565029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513704 + ... + 515030.

It is an arithmetic number, because the mean of its divisors is an integer number (49170528).

Almost surely, 2^682565009 is an apocalyptic number.

It is an amenable number.

682565009 is a deficient number, since it is larger than the sum of its proper divisors (104163439).

682565009 is a wasteful number, since it uses less digits than its factorization.

682565009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 682565009 is about 26125.9451312292. The cubic root of 682565009 is about 880.4702243299.

The spelling of 682565009 in words is "six hundred eighty-two million, five hundred sixty-five thousand, nine".