670066783 has 2 divisors, whose sum is σ = 670066784. Its totient is φ = 670066782.

The previous prime is 670066763. The next prime is 670066823. The reversal of 670066783 is 387660076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670066783 - 2¹³ = 670058591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670066763) 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, 335033391 + 335033392.

It is an arithmetic number, because the mean of its divisors is an integer number (335033392).

Almost surely, 2^670066783 is an apocalyptic number.

670066783 is a deficient number, since it is larger than the sum of its proper divisors (1).

670066783 is an equidigital number, since it uses as much as digits as its factorization.

670066783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 670066783 is about 25885.6482051348. The cubic root of 670066783 is about 875.0630846490.

The spelling of 670066783 in words is "six hundred seventy million, sixty-six thousand, seven hundred eighty-three".