670212307 has 4 divisors (see below), whose sum is σ = 681199456. Its totient is φ = 659225160.

The previous prime is 670212253. The next prime is 670212317. The reversal of 670212307 is 703212076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670212307 is a prime.

It is a super-3 number, since 3×670212307³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670212317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5493483 + ... + 5493604.

It is an arithmetic number, because the mean of its divisors is an integer number (170299864).

Almost surely, 2^670212307 is an apocalyptic number.

670212307 is a deficient number, since it is larger than the sum of its proper divisors (10987149).

670212307 is a wasteful number, since it uses less digits than its factorization.

670212307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987148.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 670212307 is about 25888.4589537500. The cubic root of 670212307 is about 875.1264283166.

The spelling of 670212307 in words is "six hundred seventy million, two hundred twelve thousand, three hundred seven".