670339697 has 2 divisors, whose sum is σ = 670339698. Its totient is φ = 670339696.

The previous prime is 670339687. The next prime is 670339711. The reversal of 670339697 is 796933076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385101376 + 285238321 = 19624^2 + 16889^2 .

It is a cyclic number.

It is not a de Polignac number, because 670339697 - 2⁶ = 670339633 is a prime.

It is not a weakly prime, because it can be changed into another prime (670339687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335169848 + 335169849.

It is an arithmetic number, because the mean of its divisors is an integer number (335169849).

Almost surely, 2^670339697 is an apocalyptic number.

It is an amenable number.

670339697 is a deficient number, since it is larger than the sum of its proper divisors (1).

670339697 is an equidigital number, since it uses as much as digits as its factorization.

670339697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1285956, while the sum is 50.

The square root of 670339697 is about 25890.9191995958. The cubic root of 670339697 is about 875.1818710929.

The spelling of 670339697 in words is "six hundred seventy million, three hundred thirty-nine thousand, six hundred ninety-seven".