687299396 has 12 divisors (see below), whose sum is σ = 1374598848. Its totient is φ = 294556872.

The previous prime is 687299387. The next prime is 687299399. The reversal of 687299396 is 693992786.

687299396 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (687299399) 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, 12273176 + ... + 12273231.

It is an arithmetic number, because the mean of its divisors is an integer number (114549904).

Almost surely, 2^687299396 is an apocalyptic number.

It is an amenable number.

687299396 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.

687299396 is a wasteful number, since it uses less digits than its factorization.

687299396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24546418 (or 24546416 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 59.

The square root of 687299396 is about 26216.3955569792. The cubic root of 687299396 is about 882.5012328145.

It can be divided in two parts, 68729 and 9396, that added together give a 7-th power (78125 = 5⁷).

The spelling of 687299396 in words is "six hundred eighty-seven million, two hundred ninety-nine thousand, three hundred ninety-six".