8904072943 has 2 divisors, whose sum is σ = 8904072944. Its totient is φ = 8904072942.

The previous prime is 8904072941. The next prime is 8904072973. The reversal of 8904072943 is 3492704098.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8904072943 - 2¹ = 8904072941 is a prime.

Together with 8904072941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8904072893 and 8904072902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8904072941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4452036471 + 4452036472.

It is an arithmetic number, because the mean of its divisors is an integer number (4452036472).

Almost surely, 2^8904072943 is an apocalyptic number.

8904072943 is a deficient number, since it is larger than the sum of its proper divisors (1).

8904072943 is an equidigital number, since it uses as much as digits as its factorization.

8904072943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 8904072943 is about 94361.3954061723. The cubic root of 8904072943 is about 2072.6671759867.

The spelling of 8904072943 in words is "eight billion, nine hundred four million, seventy-two thousand, nine hundred forty-three".