1670689063 has 2 divisors, whose sum is σ = 1670689064. Its totient is φ = 1670689062.

The previous prime is 1670689061. The next prime is 1670689099. The reversal of 1670689063 is 3609860761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1670689063 - 2¹ = 1670689061 is a prime.

Together with 1670689061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670689061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835344531 + 835344532.

It is an arithmetic number, because the mean of its divisors is an integer number (835344532).

Almost surely, 2^1670689063 is an apocalyptic number.

1670689063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670689063 is an equidigital number, since it uses as much as digits as its factorization.

1670689063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1670689063 is about 40874.0634510444. The cubic root of 1670689063 is about 1186.5841508380.

The spelling of 1670689063 in words is "one billion, six hundred seventy million, six hundred eighty-nine thousand, sixty-three".