8871374521 has 2 divisors, whose sum is σ = 8871374522. Its totient is φ = 8871374520.

The previous prime is 8871374497. The next prime is 8871374557. The reversal of 8871374521 is 1254731788.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8866858896 + 4515625 = 94164^2 + 2125^2 .

It is a cyclic number.

It is not a de Polignac number, because 8871374521 - 2⁵ = 8871374489 is a prime.

It is not a weakly prime, because it can be changed into another prime (8871374581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4435687260 + 4435687261.

It is an arithmetic number, because the mean of its divisors is an integer number (4435687261).

Almost surely, 2^8871374521 is an apocalyptic number.

It is an amenable number.

8871374521 is a deficient number, since it is larger than the sum of its proper divisors (1).

8871374521 is an equidigital number, since it uses as much as digits as its factorization.

8871374521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 46.

The square root of 8871374521 is about 94187.9743969473. The cubic root of 8871374521 is about 2070.1269124114.

The spelling of 8871374521 in words is "eight billion, eight hundred seventy-one million, three hundred seventy-four thousand, five hundred twenty-one".