687091468 has 12 divisors (see below), whose sum is σ = 1374182992. Its totient is φ = 294467760.

The previous prime is 687091451. The next prime is 687091507. The reversal of 687091468 is 864190786.

687091468 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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, 12269463 + ... + 12269518.

Almost surely, 2^687091468 is an apocalyptic number.

It is an amenable number.

687091468 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.

687091468 is a wasteful number, since it uses less digits than its factorization.

687091468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24538992 (or 24538990 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 687091468 is about 26212.4296470205. The cubic root of 687091468 is about 882.4122297663.

The spelling of 687091468 in words is "six hundred eighty-seven million, ninety-one thousand, four hundred sixty-eight".