906643033 has 2 divisors, whose sum is σ = 906643034. Its totient is φ = 906643032.

The previous prime is 906643027. The next prime is 906643043. The reversal of 906643033 is 330346609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657255769 + 249387264 = 25637^2 + 15792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-906643033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 906643033.

It is not a weakly prime, because it can be changed into another prime (906643043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453321516 + 453321517.

It is an arithmetic number, because the mean of its divisors is an integer number (453321517).

Almost surely, 2^906643033 is an apocalyptic number.

It is an amenable number.

906643033 is a deficient number, since it is larger than the sum of its proper divisors (1).

906643033 is an equidigital number, since it uses as much as digits as its factorization.

906643033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 906643033 is about 30110.5136621745. The cubic root of 906643033 is about 967.8590371569.

The spelling of 906643033 in words is "nine hundred six million, six hundred forty-three thousand, thirty-three".