678627 has 6 divisors (see below), whose sum is σ = 980252. Its totient is φ = 452412.

The previous prime is 678611. The next prime is 678631. The reversal of 678627 is 726876.

It is not a de Polignac number, because 678627 - 2⁴ = 678611 is a prime.

It is a Duffinian number.

678627 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 678591 and 678600.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 678627.

It is not an unprimeable number, because it can be changed into a prime (678607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37693 + ... + 37710.

2⁶⁷⁸⁶²⁷ is an apocalyptic number.

678627 is a deficient number, since it is larger than the sum of its proper divisors (301625).

678627 is a wasteful number, since it uses less digits than its factorization.

678627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75409 (or 75406 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 678627 is about 823.7882009352. The cubic root of 678627 is about 87.8773687889.

The spelling of 678627 in words is "six hundred seventy-eight thousand, six hundred twenty-seven".