688007145 has 16 divisors (see below), whose sum is σ = 1258070400. Its totient is φ = 314517504.

The previous prime is 688007137. The next prime is 688007171. The reversal of 688007145 is 541700886.

It is not a de Polignac number, because 688007145 - 2³ = 688007137 is a prime.

It is an unprimeable number.

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, 3276120 + ... + 3276329.

It is an arithmetic number, because the mean of its divisors is an integer number (78629400).

Almost surely, 2^688007145 is an apocalyptic number.

It is an amenable number.

688007145 is a deficient number, since it is larger than the sum of its proper divisors (570063255).

688007145 is a wasteful number, since it uses less digits than its factorization.

688007145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552464.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 688007145 is about 26229.8902971400. The cubic root of 688007145 is about 882.8040484919.

The spelling of 688007145 in words is "six hundred eighty-eight million, seven thousand, one hundred forty-five".