675687 has 8 divisors (see below), whose sum is σ = 912640. Its totient is φ = 444600.

The previous prime is 675643. The next prime is 675713. The reversal of 675687 is 786576.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 675687 - 2⁷ = 675559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 675687.

It is not an unprimeable number, because it can be changed into a prime (675607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189 + ... + 1662.

It is an arithmetic number, because the mean of its divisors is an integer number (114080).

2⁶⁷⁵⁶⁸⁷ is an apocalyptic number.

675687 is a deficient number, since it is larger than the sum of its proper divisors (236953).

675687 is a wasteful number, since it uses less digits than its factorization.

675687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933.

The product of its digits is 70560, while the sum is 39.

The square root of 675687 is about 822.0018248155. The cubic root of 675687 is about 87.7502820585.

Subtracting 675687 from its reverse (786576), we obtain a square (110889 = 333²).

The spelling of 675687 in words is "six hundred seventy-five thousand, six hundred eighty-seven".