670930 has 24 divisors (see below), whose sum is σ = 1311012. Its totient is φ = 247104.

The previous prime is 670919. The next prime is 670931. The reversal of 670930 is 39076.

670930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 106929 + 564001 = 327^2 + 751^2 .

It is a junction number, because it is equal to n+sod(n) for n = 670895 and 670904.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670930.

It is not an unprimeable number, because it can be changed into a prime (670931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1492 + ... + 1888.

2⁶⁷⁰⁹³⁰ is an apocalyptic number.

670930 is a deficient number, since it is larger than the sum of its proper divisors (640082).

670930 is a wasteful number, since it uses less digits than its factorization.

670930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 670930 is about 819.1031681052. The cubic root of 670930 is about 87.5438691585.

It can be divided in two parts, 670 and 930, that added together give a square (1600 = 40²).

The spelling of 670930 in words is "six hundred seventy thousand, nine hundred thirty".