4391492873 has 2 divisors, whose sum is σ = 4391492874. Its totient is φ = 4391492872.

The previous prime is 4391492869. The next prime is 4391492927. The reversal of 4391492873 is 3782941934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4288023289 + 103469584 = 65483^2 + 10172^2 .

It is a cyclic number.

It is not a de Polignac number, because 4391492873 - 2² = 4391492869 is a prime.

It is not a weakly prime, because it can be changed into another prime (4391492803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195746436 + 2195746437.

It is an arithmetic number, because the mean of its divisors is an integer number (2195746437).

Almost surely, 2^4391492873 is an apocalyptic number.

It is an amenable number.

4391492873 is a deficient number, since it is larger than the sum of its proper divisors (1).

4391492873 is an equidigital number, since it uses as much as digits as its factorization.

4391492873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 4391492873 is about 66268.3398992309. The cubic root of 4391492873 is about 1637.5857886255.

The spelling of 4391492873 in words is "four billion, three hundred ninety-one million, four hundred ninety-two thousand, eight hundred seventy-three".