680985087 has 8 divisors (see below), whose sum is σ = 908118960. Its totient is φ = 453920640.

The previous prime is 680985083. The next prime is 680985101. The reversal of 680985087 is 780589086.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680985087 - 2² = 680985083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680985083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13239 + ... + 39207.

It is an arithmetic number, because the mean of its divisors is an integer number (113514870).

Almost surely, 2^680985087 is an apocalyptic number.

680985087 is a deficient number, since it is larger than the sum of its proper divisors (227133873).

680985087 is a wasteful number, since it uses less digits than its factorization.

680985087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34713.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 680985087 is about 26095.6909661346. The cubic root of 680985087 is about 879.7903628561.

The spelling of 680985087 in words is "six hundred eighty million, nine hundred eighty-five thousand, eighty-seven".