1002091693 has 2 divisors, whose sum is σ = 1002091694. Its totient is φ = 1002091692.

The previous prime is 1002091687. The next prime is 1002091751. The reversal of 1002091693 is 3961902001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992376004 + 9715689 = 31502^2 + 3117^2 .

It is an emirp because it is prime and its reverse (3961902001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002091693 - 2⁵ = 1002091661 is a prime.

It is a super-2 number, since 2×1002091693² = 2008375522359212498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002091663) 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, 501045846 + 501045847.

It is an arithmetic number, because the mean of its divisors is an integer number (501045847).

Almost surely, 2^1002091693 is an apocalyptic number.

It is an amenable number.

1002091693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002091693 is an equidigital number, since it uses as much as digits as its factorization.

1002091693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1002091693 is about 31655.8318955607. The cubic root of 1002091693 is about 1000.6967454331.

Adding to 1002091693 its reverse (3961902001), we get a palindrome (4963993694).

The spelling of 1002091693 in words is "one billion, two million, ninety-one thousand, six hundred ninety-three".