670587 has 4 divisors (see below), whose sum is σ = 894120. Its totient is φ = 447056.

The previous prime is 670583. The next prime is 670597. The reversal of 670587 is 785076.

670587 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670587 - 2² = 670583 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

670587 is strictly pandigital in base 7.

670587 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670587.

It is not an unprimeable number, because it can be changed into a prime (670583) 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 3 ways as a sum of consecutive naturals, for example, 111762 + ... + 111767.

It is an arithmetic number, because the mean of its divisors is an integer number (223530).

2⁶⁷⁰⁵⁸⁷ is an apocalyptic number.

670587 is a deficient number, since it is larger than the sum of its proper divisors (223533).

670587 is a wasteful number, since it uses less digits than its factorization.

670587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223532.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 670587 is about 818.8937660039. The cubic root of 670587 is about 87.5289482449.

The spelling of 670587 in words is "six hundred seventy thousand, five hundred eighty-seven".