687160045 has 16 divisors (see below), whose sum is σ = 968752512. Its totient is φ = 461309760.

The previous prime is 687160031. The next prime is 687160049. The reversal of 687160045 is 540061786.

It is not a de Polignac number, because 687160045 - 2⁵ = 687160013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687159986 and 687160013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687160049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479817 + ... + 481246.

It is an arithmetic number, because the mean of its divisors is an integer number (60547032).

Almost surely, 2^687160045 is an apocalyptic number.

687160045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

687160045 is a deficient number, since it is larger than the sum of its proper divisors (281592467).

687160045 is a wasteful number, since it uses less digits than its factorization.

687160045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961092.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 687160045 is about 26213.7377151752. The cubic root of 687160045 is about 882.4415859599.

The spelling of 687160045 in words is "six hundred eighty-seven million, one hundred sixty thousand, forty-five".