670538 has 16 divisors (see below), whose sum is σ = 1136160. Its totient is φ = 294000.

The previous prime is 670517. The next prime is 670541. The reversal of 670538 is 835076.

670538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 670538.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (71010).

2⁶⁷⁰⁵³⁸ is an apocalyptic number.

670538 is a deficient number, since it is larger than the sum of its proper divisors (465622).

670538 is a wasteful number, since it uses less digits than its factorization.

670538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 670538 is about 818.8638470466. The cubic root of 670538 is about 87.5268162705.

The spelling of 670538 in words is "six hundred seventy thousand, five hundred thirty-eight".