803533961 has 2 divisors, whose sum is σ = 803533962. Its totient is φ = 803533960.

The previous prime is 803533933. The next prime is 803533963. The reversal of 803533961 is 169335308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 746983561 + 56550400 = 27331^2 + 7520^2 .

It is a cyclic number.

It is not a de Polignac number, because 803533961 - 2²² = 799339657 is a prime.

Together with 803533963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (803533963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401766980 + 401766981.

It is an arithmetic number, because the mean of its divisors is an integer number (401766981).

Almost surely, 2^803533961 is an apocalyptic number.

It is an amenable number.

803533961 is a deficient number, since it is larger than the sum of its proper divisors (1).

803533961 is an equidigital number, since it uses as much as digits as its factorization.

803533961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 803533961 is about 28346.6746021469. The cubic root of 803533961 is about 929.6826916877.

The spelling of 803533961 in words is "eight hundred three million, five hundred thirty-three thousand, nine hundred sixty-one".