670369939 has 2 divisors, whose sum is σ = 670369940. Its totient is φ = 670369938.

The previous prime is 670369927. The next prime is 670369949. The reversal of 670369939 is 939963076.

670369939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670369939 - 2¹⁹ = 669845651 is a prime.

It is a super-2 number, since 2×670369939² = 898791710229727442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (670369949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335184969 + 335184970.

It is an arithmetic number, because the mean of its divisors is an integer number (335184970).

Almost surely, 2^670369939 is an apocalyptic number.

670369939 is a deficient number, since it is larger than the sum of its proper divisors (1).

670369939 is an equidigital number, since it uses as much as digits as its factorization.

670369939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372, while the sum is 52.

The square root of 670369939 is about 25891.5032201686. The cubic root of 670369939 is about 875.1950320084.

The spelling of 670369939 in words is "six hundred seventy million, three hundred sixty-nine thousand, nine hundred thirty-nine".