9781074943 has 2 divisors, whose sum is σ = 9781074944. Its totient is φ = 9781074942.

The previous prime is 9781074917. The next prime is 9781074959. The reversal of 9781074943 is 3494701879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9781074943 - 2⁵ = 9781074911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9781074913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4890537471 + 4890537472.

It is an arithmetic number, because the mean of its divisors is an integer number (4890537472).

Almost surely, 2^9781074943 is an apocalyptic number.

9781074943 is a deficient number, since it is larger than the sum of its proper divisors (1).

9781074943 is an equidigital number, since it uses as much as digits as its factorization.

9781074943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 9781074943 is about 98899.3172018897. The cubic root of 9781074943 is about 2138.5965514089.

The spelling of 9781074943 in words is "nine billion, seven hundred eighty-one million, seventy-four thousand, nine hundred forty-three".