890694443 has 2 divisors, whose sum is σ = 890694444. Its totient is φ = 890694442.

The previous prime is 890694419. The next prime is 890694529. The reversal of 890694443 is 344496098.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890694443 is a prime.

It is not a weakly prime, because it can be changed into another prime (890694043) 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, 445347221 + 445347222.

It is an arithmetic number, because the mean of its divisors is an integer number (445347222).

Almost surely, 2^890694443 is an apocalyptic number.

890694443 is a deficient number, since it is larger than the sum of its proper divisors (1).

890694443 is an equidigital number, since it uses as much as digits as its factorization.

890694443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 890694443 is about 29844.5044019833. The cubic root of 890694443 is about 962.1502881543.

The spelling of 890694443 in words is "eight hundred ninety million, six hundred ninety-four thousand, four hundred forty-three".