670047769 has 2 divisors, whose sum is σ = 670047770. Its totient is φ = 670047768.

The previous prime is 670047767. The next prime is 670047793. The reversal of 670047769 is 967740076.

670047769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624350169 + 45697600 = 24987^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 670047769 - 2¹ = 670047767 is a prime.

It is a super-2 number, since 2×670047769² = 897928025483754722, which contains 22 as substring.

Together with 670047767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (670047767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335023884 + 335023885.

It is an arithmetic number, because the mean of its divisors is an integer number (335023885).

Almost surely, 2^670047769 is an apocalyptic number.

It is an amenable number.

670047769 is a deficient number, since it is larger than the sum of its proper divisors (1).

670047769 is an equidigital number, since it uses as much as digits as its factorization.

670047769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 670047769 is about 25885.2809333799. The cubic root of 670047769 is about 875.0548075601.

The spelling of 670047769 in words is "six hundred seventy million, forty-seven thousand, seven hundred sixty-nine".