1670299493 has 2 divisors, whose sum is σ = 1670299494. Its totient is φ = 1670299492.

The previous prime is 1670299483. The next prime is 1670299507. The reversal of 1670299493 is 3949920761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1451762404 + 218537089 = 38102^2 + 14783^2 .

It is an emirp because it is prime and its reverse (3949920761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1670299493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670299403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835149746 + 835149747.

It is an arithmetic number, because the mean of its divisors is an integer number (835149747).

Almost surely, 2^1670299493 is an apocalyptic number.

It is an amenable number.

1670299493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670299493 is an equidigital number, since it uses as much as digits as its factorization.

1670299493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 1670299493 is about 40869.2976817562. The cubic root of 1670299493 is about 1186.4919147397.

The spelling of 1670299493 in words is "one billion, six hundred seventy million, two hundred ninety-nine thousand, four hundred ninety-three".