1670719007 has 2 divisors, whose sum is σ = 1670719008. Its totient is φ = 1670719006.

The previous prime is 1670719003. The next prime is 1670719021. The reversal of 1670719007 is 7009170761.

It is a weak prime.

It is an emirp because it is prime and its reverse (7009170761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1670719007 - 2² = 1670719003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670719003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835359503 + 835359504.

It is an arithmetic number, because the mean of its divisors is an integer number (835359504).

Almost surely, 2^1670719007 is an apocalyptic number.

1670719007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670719007 is an equidigital number, since it uses as much as digits as its factorization.

1670719007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18522, while the sum is 38.

The square root of 1670719007 is about 40874.4297452576. The cubic root of 1670719007 is about 1186.5912399017.

Adding to 1670719007 its reverse (7009170761), we get a palindrome (8679889768).

The spelling of 1670719007 in words is "one billion, six hundred seventy million, seven hundred nineteen thousand, seven".