687774352 has 20 divisors (see below), whose sum is σ = 1368579196. Its totient is φ = 334592640.

The previous prime is 687774337. The next prime is 687774377. The reversal of 687774352 is 253477786.

It is a happy number.

687774352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 619810816 + 67963536 = 24896^2 + 8244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 687774296 and 687774305.

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, 580299 + ... + 581482.

Almost surely, 2^687774352 is an apocalyptic number.

It is an amenable number.

687774352 is a deficient number, since it is larger than the sum of its proper divisors (680804844).

687774352 is a wasteful number, since it uses less digits than its factorization.

687774352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161826 (or 1161820 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 49.

The square root of 687774352 is about 26225.4523697876. The cubic root of 687774352 is about 882.7044692034.

The spelling of 687774352 in words is "six hundred eighty-seven million, seven hundred seventy-four thousand, three hundred fifty-two".