670292309 has 2 divisors, whose sum is σ = 670292310. Its totient is φ = 670292308.

The previous prime is 670292209. The next prime is 670292353. The reversal of 670292309 is 903292076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396886084 + 273406225 = 19922^2 + 16535^2 .

It is a cyclic number.

It is not a de Polignac number, because 670292309 - 2¹⁶ = 670226773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670292369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335146154 + 335146155.

It is an arithmetic number, because the mean of its divisors is an integer number (335146155).

Almost surely, 2^670292309 is an apocalyptic number.

It is an amenable number.

670292309 is a deficient number, since it is larger than the sum of its proper divisors (1).

670292309 is an equidigital number, since it uses as much as digits as its factorization.

670292309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 670292309 is about 25890.0040363071. The cubic root of 670292309 is about 875.1612476707.

The spelling of 670292309 in words is "six hundred seventy million, two hundred ninety-two thousand, three hundred nine".