680986089 has 16 divisors (see below), whose sum is σ = 1152992640. Its totient is φ = 389134800.

The previous prime is 680986079. The next prime is 680986099. The reversal of 680986089 is 980689086.

It is an interprime number because it is at equal distance from previous prime (680986079) and next prime (680986099).

It is not a de Polignac number, because 680986089 - 2¹² = 680981993 is a prime.

680986089 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (680986039) 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, 1801362 + ... + 1801739.

It is an arithmetic number, because the mean of its divisors is an integer number (72062040).

Almost surely, 2^680986089 is an apocalyptic number.

It is an amenable number.

680986089 is a deficient number, since it is larger than the sum of its proper divisors (472006551).

680986089 is a wasteful number, since it uses less digits than its factorization.

680986089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603117 (or 3603111 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 680986089 is about 26095.7101646995. The cubic root of 680986089 is about 879.7907943631.

The spelling of 680986089 in words is "six hundred eighty million, nine hundred eighty-six thousand, eighty-nine".