670775 has 12 divisors (see below), whose sum is σ = 950832. Its totient is φ = 459840.

The previous prime is 670763. The next prime is 670777. The reversal of 670775 is 577076.

It is a happy number.

It is not a de Polignac number, because 670775 - 2⁶ = 670711 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670777) 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 11 ways as a sum of consecutive naturals, for example, 1742 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (79236).

2⁶⁷⁰⁷⁷⁵ is an apocalyptic number.

670775 is a deficient number, since it is larger than the sum of its proper divisors (280057).

670775 is a wasteful number, since it uses less digits than its factorization.

670775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850 (or 3845 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 670775 is about 819.0085469639. The cubic root of 670775 is about 87.5371271015.

The spelling of 670775 in words is "six hundred seventy thousand, seven hundred seventy-five".