1065728333 has 4 divisors (see below), whose sum is σ = 1067526108. Its totient is φ = 1063930560.

The previous prime is 1065728309. The next prime is 1065728347. The reversal of 1065728333 is 3338275601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3338275601 = 17 ⋅196369153.

It can be written as a sum of positive squares in 2 ways, for example, as 414611044 + 651117289 = 20362^2 + 25517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065728333 - 2¹⁸ = 1065466189 is a prime.

It is a super-2 number, since 2×1065728333² = 2271553759517917778, 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 (1065728933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897998 + ... + 899183.

It is an arithmetic number, because the mean of its divisors is an integer number (266881527).

Almost surely, 2^1065728333 is an apocalyptic number.

It is an amenable number.

1065728333 is a deficient number, since it is larger than the sum of its proper divisors (1797775).

1065728333 is an equidigital number, since it uses as much as digits as its factorization.

1065728333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797774.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 1065728333 is about 32645.4948346629. The cubic root of 1065728333 is about 1021.4462161538.

The spelling of 1065728333 in words is "one billion, sixty-five million, seven hundred twenty-eight thousand, three hundred thirty-three".