8680389 has 16 divisors (see below), whose sum is σ = 11902464. Its totient is φ = 5625200.

The previous prime is 8680379. The next prime is 8680391. The reversal of 8680389 is 9830868.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8680389 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8680389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8680369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17434 + ... + 17924.

It is an arithmetic number, because the mean of its divisors is an integer number (743904).

Almost surely, 2^8680389 is an apocalyptic number.

It is an amenable number.

8680389 is a deficient number, since it is larger than the sum of its proper divisors (3222075).

8680389 is a wasteful number, since it uses less digits than its factorization.

8680389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 8680389 is about 2946.2499893933. The cubic root of 8680389 is about 205.5163584162.

The spelling of 8680389 in words is "eight million, six hundred eighty thousand, three hundred eighty-nine".