9870843413 has 2 divisors, whose sum is σ = 9870843414. Its totient is φ = 9870843412.

The previous prime is 9870843401. The next prime is 9870843427. The reversal of 9870843413 is 3143480789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7921356004 + 1949487409 = 89002^2 + 44153^2 .

It is an emirp because it is prime and its reverse (3143480789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9870843413 - 2¹⁸ = 9870581269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9870843713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4935421706 + 4935421707.

It is an arithmetic number, because the mean of its divisors is an integer number (4935421707).

Almost surely, 2^9870843413 is an apocalyptic number.

It is an amenable number.

9870843413 is a deficient number, since it is larger than the sum of its proper divisors (1).

9870843413 is an equidigital number, since it uses as much as digits as its factorization.

9870843413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 9870843413 is about 99352.1183115891. The cubic root of 9870843413 is about 2145.1191543649.

The spelling of 9870843413 in words is "nine billion, eight hundred seventy million, eight hundred forty-three thousand, four hundred thirteen".