680430087 has 12 divisors (see below), whose sum is σ = 983968024. Its totient is φ = 453101040.

The previous prime is 680430077. The next prime is 680430119. The reversal of 680430087 is 780034086.

It is not a de Polignac number, because 680430087 - 2²³ = 672041479 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680430077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34864 + ... + 50757.

Almost surely, 2^680430087 is an apocalyptic number.

680430087 is a deficient number, since it is larger than the sum of its proper divisors (303537937).

680430087 is a wasteful number, since it uses less digits than its factorization.

680430087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86510 (or 86507 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 680430087 is about 26085.0548590567. The cubic root of 680430087 is about 879.5512894067.

The spelling of 680430087 in words is "six hundred eighty million, four hundred thirty thousand, eighty-seven".