1690050613 has 2 divisors, whose sum is σ = 1690050614. Its totient is φ = 1690050612.

The previous prime is 1690050601. The next prime is 1690050617. The reversal of 1690050613 is 3160500961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1614673489 + 75377124 = 40183^2 + 8682^2 .

It is an emirp because it is prime and its reverse (3160500961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1690050613 - 2⁹ = 1690050101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1690050617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845025306 + 845025307.

It is an arithmetic number, because the mean of its divisors is an integer number (845025307).

Almost surely, 2^1690050613 is an apocalyptic number.

It is an amenable number.

1690050613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690050613 is an equidigital number, since it uses as much as digits as its factorization.

1690050613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1690050613 is about 41110.2251635770. The cubic root of 1690050613 is about 1191.1503160223.

The spelling of 1690050613 in words is "one billion, six hundred ninety million, fifty thousand, six hundred thirteen".