670374539 has 2 divisors, whose sum is σ = 670374540. Its totient is φ = 670374538.

The previous prime is 670374533. The next prime is 670374541. The reversal of 670374539 is 935473076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670374539 - 2²⁰ = 669325963 is a prime.

Together with 670374541, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_34796870 and since 670374539 and 34796870 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670374539.

It is not a weakly prime, because it can be changed into another prime (670374533) 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 as a sum of consecutive naturals, namely, 335187269 + 335187270.

It is an arithmetic number, because the mean of its divisors is an integer number (335187270).

Almost surely, 2^670374539 is an apocalyptic number.

670374539 is a deficient number, since it is larger than the sum of its proper divisors (1).

670374539 is an equidigital number, since it uses as much as digits as its factorization.

670374539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 44.

The square root of 670374539 is about 25891.5920522474. The cubic root of 670374539 is about 875.1970338324.

The spelling of 670374539 in words is "six hundred seventy million, three hundred seventy-four thousand, five hundred thirty-nine".