890745943 has 2 divisors, whose sum is σ = 890745944. Its totient is φ = 890745942.

The previous prime is 890745913. The next prime is 890745953. The reversal of 890745943 is 349547098.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 890745943 - 2⁹ = 890745431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890745913) 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, 445372971 + 445372972.

It is an arithmetic number, because the mean of its divisors is an integer number (445372972).

Almost surely, 2^890745943 is an apocalyptic number.

890745943 is a deficient number, since it is larger than the sum of its proper divisors (1).

890745943 is an equidigital number, since it uses as much as digits as its factorization.

890745943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 890745943 is about 29845.3671949266. The cubic root of 890745943 is about 962.1688316571.

The spelling of 890745943 in words is "eight hundred ninety million, seven hundred forty-five thousand, nine hundred forty-three".