687506874 has 8 divisors (see below), whose sum is σ = 1375013760. Its totient is φ = 229168956.

The previous prime is 687506873. The next prime is 687506921. The reversal of 687506874 is 478605786.

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

687506874 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (687506873) 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, 57292234 + ... + 57292245.

It is an arithmetic number, because the mean of its divisors is an integer number (171876720).

Almost surely, 2^687506874 is an apocalyptic number.

687506874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687506874 is a wasteful number, since it uses less digits than its factorization.

687506874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114584484.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The square root of 687506874 is about 26220.3522859629. The cubic root of 687506874 is about 882.5900253507.

The spelling of 687506874 in words is "six hundred eighty-seven million, five hundred six thousand, eight hundred seventy-four".