670338673 has 4 divisors (see below), whose sum is σ = 670989888. Its totient is φ = 669687460.

The previous prime is 670338649. The next prime is 670338709. The reversal of 670338673 is 376833076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670338673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670338623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324061 + ... + 326122.

It is an arithmetic number, because the mean of its divisors is an integer number (167747472).

Almost surely, 2^670338673 is an apocalyptic number.

It is an amenable number.

670338673 is a deficient number, since it is larger than the sum of its proper divisors (651215).

670338673 is a wasteful number, since it uses less digits than its factorization.

670338673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651214.

The product of its (nonzero) digits is 381024, while the sum is 43.

The square root of 670338673 is about 25890.8994243151. The cubic root of 670338673 is about 875.1814254549.

The spelling of 670338673 in words is "six hundred seventy million, three hundred thirty-eight thousand, six hundred seventy-three".