9876541321 has 2 divisors, whose sum is σ = 9876541322. Its totient is φ = 9876541320.

The previous prime is 9876541303. The next prime is 9876541327. The reversal of 9876541321 is 1231456789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9719790921 + 156750400 = 98589^2 + 12520^2 .

It is a cyclic number.

It is not a de Polignac number, because 9876541321 - 2³¹ = 7729057673 is a prime.

It is not a weakly prime, because it can be changed into another prime (9876541327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4938270660 + 4938270661.

It is an arithmetic number, because the mean of its divisors is an integer number (4938270661).

Almost surely, 2^9876541321 is an apocalyptic number.

It is an amenable number.

9876541321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9876541321 is an equidigital number, since it uses as much as digits as its factorization.

9876541321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 9876541321 is about 99380.7894967634. The cubic root of 9876541321 is about 2145.5318290135.

The spelling of 9876541321 in words is "nine billion, eight hundred seventy-six million, five hundred forty-one thousand, three hundred twenty-one".