670212306 has 20 divisors (see below), whose sum is σ = 1501772382. Its totient is φ = 223404048.

The previous prime is 670212253. The next prime is 670212317. The reversal of 670212306 is 603212076.

It is a happy number.

670212306 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 only one way, i.e., 660233025 + 9979281 = 25695^2 + 3159^2 .

It is a super-2 number, since 2×670212306² = 898369070227675272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 670212306.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2068395 + ... + 2068718.

Almost surely, 2^670212306 is an apocalyptic number.

670212306 is an abundant number, since it is smaller than the sum of its proper divisors (831560076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670212306 is a wasteful number, since it uses less digits than its factorization.

670212306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137127 (or 4137118 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 670212306 is about 25888.4589344364. The cubic root of 670212306 is about 875.1264278813.

The spelling of 670212306 in words is "six hundred seventy million, two hundred twelve thousand, three hundred six".