1032820643 has 2 divisors, whose sum is σ = 1032820644. Its totient is φ = 1032820642.

The previous prime is 1032820619. The next prime is 1032820661. The reversal of 1032820643 is 3460282301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1032820643 - 2⁸ = 1032820387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1032820673) 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, 516410321 + 516410322.

It is an arithmetic number, because the mean of its divisors is an integer number (516410322).

Almost surely, 2^1032820643 is an apocalyptic number.

1032820643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1032820643 is an equidigital number, since it uses as much as digits as its factorization.

1032820643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1032820643 is about 32137.5270206032. The cubic root of 1032820643 is about 1010.8226617727.

The spelling of 1032820643 in words is "one billion, thirty-two million, eight hundred twenty thousand, six hundred forty-three".