687027 has 16 divisors (see below), whose sum is σ = 1013760. Its totient is φ = 410400.

The previous prime is 687023. The next prime is 687031. The reversal of 687027 is 720786.

It is an interprime number because it is at equal distance from previous prime (687023) and next prime (687031).

It is not a de Polignac number, because 687027 - 2² = 687023 is a prime.

687027 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 686985 and 687003.

It is not an unprimeable number, because it can be changed into a prime (687023) 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, 3502 + ... + 3692.

It is an arithmetic number, because the mean of its divisors is an integer number (63360).

2⁶⁸⁷⁰²⁷ is an apocalyptic number.

687027 is a deficient number, since it is larger than the sum of its proper divisors (326733).

687027 is a wasteful number, since it uses less digits than its factorization.

687027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 687027 is about 828.8709187805. The cubic root of 687027 is about 88.2384630757.

The spelling of 687027 in words is "six hundred eighty-seven thousand, twenty-seven".