1065989933 has 4 divisors (see below), whose sum is σ = 1066517340. Its totient is φ = 1065462528.

The previous prime is 1065989921. The next prime is 1065989941. The reversal of 1065989933 is 3399895601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3399895601 = 26951 ⋅126151.

It can be written as a sum of positive squares in 2 ways, for example, as 553284484 + 512705449 = 23522^2 + 22643^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065989933 - 2²⁶ = 998881069 is a prime.

It is a super-2 number, since 2×1065989933² = 2272669074514688978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065980933) 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 in 3 ways as a sum of consecutive naturals, for example, 260660 + ... + 264717.

It is an arithmetic number, because the mean of its divisors is an integer number (266629335).

Almost surely, 2^1065989933 is an apocalyptic number.

It is an amenable number.

1065989933 is a deficient number, since it is larger than the sum of its proper divisors (527407).

1065989933 is an equidigital number, since it uses as much as digits as its factorization.

1065989933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527406.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The square root of 1065989933 is about 32649.5012672476. The cubic root of 1065989933 is about 1021.5297860659.

The spelling of 1065989933 in words is "one billion, sixty-five million, nine hundred eighty-nine thousand, nine hundred thirty-three".