680000089 has 4 divisors (see below), whose sum is σ = 694468224. Its totient is φ = 665531956.

The previous prime is 680000071. The next prime is 680000107. The reversal of 680000089 is 980000086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (680000071) and next prime (680000107).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680000089 is a prime.

680000089 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 680000089.

It is not an unprimeable number, because it can be changed into a prime (680000029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7233997 + ... + 7234090.

It is an arithmetic number, because the mean of its divisors is an integer number (173617056).

Almost surely, 2^680000089 is an apocalyptic number.

It is an amenable number.

680000089 is a deficient number, since it is larger than the sum of its proper divisors (14468135).

680000089 is a wasteful number, since it uses less digits than its factorization.

680000089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14468134.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 680000089 is about 26076.8113273076. The cubic root of 680000089 is about 879.3659727961.

The spelling of 680000089 in words is "six hundred eighty million, eighty-nine", and thus it is an aban number.