8340073891 has 2 divisors, whose sum is σ = 8340073892. Its totient is φ = 8340073890.

The previous prime is 8340073879. The next prime is 8340073927. The reversal of 8340073891 is 1983700438.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8340073891 - 2¹⁵ = 8340041123 is a prime.

It is not a weakly prime, because it can be changed into another prime (8340073801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4170036945 + 4170036946.

It is an arithmetic number, because the mean of its divisors is an integer number (4170036946).

Almost surely, 2^8340073891 is an apocalyptic number.

8340073891 is a deficient number, since it is larger than the sum of its proper divisors (1).

8340073891 is an equidigital number, since it uses as much as digits as its factorization.

8340073891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 8340073891 is about 91324.0050096359. The cubic root of 8340073891 is about 2027.9471503169.

The spelling of 8340073891 in words is "eight billion, three hundred forty million, seventy-three thousand, eight hundred ninety-one".