687863086 has 8 divisors (see below), whose sum is σ = 1045929024. Its totient is φ = 339220080.

The previous prime is 687863009. The next prime is 687863117. The reversal of 687863086 is 680368786.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2355550 + ... + 2355841.

It is an arithmetic number, because the mean of its divisors is an integer number (130741128).

Almost surely, 2^687863086 is an apocalyptic number.

687863086 is a deficient number, since it is larger than the sum of its proper divisors (358065938).

687863086 is a wasteful number, since it uses less digits than its factorization.

687863086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711466.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 687863086 is about 26227.1440686934. The cubic root of 687863086 is about 882.7424286155.

The spelling of 687863086 in words is "six hundred eighty-seven million, eight hundred sixty-three thousand, eighty-six".