687963345 has 16 divisors (see below), whose sum is σ = 1114005312. Its totient is φ = 362492480.

The previous prime is 687963329. The next prime is 687963349. The reversal of 687963345 is 543369786.

It is not a de Polignac number, because 687963345 - 2⁴ = 687963329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (687963349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275046 + ... + 277535.

It is an arithmetic number, because the mean of its divisors is an integer number (69625332).

Almost surely, 2^687963345 is an apocalyptic number.

It is an amenable number.

687963345 is a deficient number, since it is larger than the sum of its proper divisors (426041967).

687963345 is a wasteful number, since it uses less digits than its factorization.

687963345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552672.

The product of its digits is 3265920, while the sum is 51.

The square root of 687963345 is about 26229.0553585142. The cubic root of 687963345 is about 882.7853143658.

The spelling of 687963345 in words is "six hundred eighty-seven million, nine hundred sixty-three thousand, three hundred forty-five".