670323713 has 4 divisors (see below), whose sum is σ = 670376148. Its totient is φ = 670271280.

The previous prime is 670323673. The next prime is 670323749. The reversal of 670323713 is 317323076.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 375274384 + 295049329 = 19372^2 + 17177^2 .

It is a cyclic number.

It is not a de Polignac number, because 670323713 - 2⁸ = 670323457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670323713.

It is not an unprimeable number, because it can be changed into a prime (670323763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6923 + ... + 37263.

It is an arithmetic number, because the mean of its divisors is an integer number (167594037).

Almost surely, 2^670323713 is an apocalyptic number.

It is an amenable number.

670323713 is a deficient number, since it is larger than the sum of its proper divisors (52435).

670323713 is a wasteful number, since it uses less digits than its factorization.

670323713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52434.

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 670323713 is about 25890.6105181010. The cubic root of 670323713 is about 875.1749149092.

Adding to 670323713 its reverse (317323076), we get a palindrome (987646789).

The spelling of 670323713 in words is "six hundred seventy million, three hundred twenty-three thousand, seven hundred thirteen".