670703307 has 4 divisors (see below), whose sum is σ = 894271080. Its totient is φ = 447135536.

The previous prime is 670703303. The next prime is 670703333. The reversal of 670703307 is 703307076.

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

It is a cyclic number.

It is not a de Polignac number, because 670703307 - 2² = 670703303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670703303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111783882 + ... + 111783887.

It is an arithmetic number, because the mean of its divisors is an integer number (223567770).

Almost surely, 2^670703307 is an apocalyptic number.

670703307 is a deficient number, since it is larger than the sum of its proper divisors (223567773).

670703307 is a wasteful number, since it uses less digits than its factorization.

670703307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223567772.

The product of its (nonzero) digits is 18522, while the sum is 33.

The square root of 670703307 is about 25897.9402076690. The cubic root of 670703307 is about 875.3400830965.

The spelling of 670703307 in words is "six hundred seventy million, seven hundred three thousand, three hundred seven".