670663079 has 2 divisors, whose sum is σ = 670663080. Its totient is φ = 670663078.

The previous prime is 670663061. The next prime is 670663109. The reversal of 670663079 is 970366076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670663079 - 2²⁴ = 653885863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670663009) 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, 335331539 + 335331540.

It is an arithmetic number, because the mean of its divisors is an integer number (335331540).

Almost surely, 2^670663079 is an apocalyptic number.

670663079 is a deficient number, since it is larger than the sum of its proper divisors (1).

670663079 is an equidigital number, since it uses as much as digits as its factorization.

670663079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 670663079 is about 25897.1635319392. The cubic root of 670663079 is about 875.3225821218.

The spelling of 670663079 in words is "six hundred seventy million, six hundred sixty-three thousand, seventy-nine".