670720606 has 16 divisors (see below), whose sum is σ = 1010780208. Its totient is φ = 333798400.

The previous prime is 670720591. The next prime is 670720607. The reversal of 670720606 is 606027076.

It is a super-2 number, since 2×670720606² = 899732262626014472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670720607) 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, 567336 + ... + 568516.

It is an arithmetic number, because the mean of its divisors is an integer number (63173763).

Almost surely, 2^670720606 is an apocalyptic number.

670720606 is a deficient number, since it is larger than the sum of its proper divisors (340059602).

670720606 is a wasteful number, since it uses less digits than its factorization.

670720606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 670720606 is about 25898.2741896058. The cubic root of 670720606 is about 875.3476087181.

The spelling of 670720606 in words is "six hundred seventy million, seven hundred twenty thousand, six hundred six".