8821473413 has 2 divisors, whose sum is σ = 8821473414. Its totient is φ = 8821473412.

The previous prime is 8821473389. The next prime is 8821473443. The reversal of 8821473413 is 3143741288.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6590517124 + 2230956289 = 81182^2 + 47233^2 .

It is a cyclic number.

It is not a de Polignac number, because 8821473413 - 2¹² = 8821469317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8821473443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4410736706 + 4410736707.

It is an arithmetic number, because the mean of its divisors is an integer number (4410736707).

Almost surely, 2^8821473413 is an apocalyptic number.

It is an amenable number.

8821473413 is a deficient number, since it is larger than the sum of its proper divisors (1).

8821473413 is an equidigital number, since it uses as much as digits as its factorization.

8821473413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 8821473413 is about 93922.6991360448. The cubic root of 8821473413 is about 2066.2381530075.

The spelling of 8821473413 in words is "eight billion, eight hundred twenty-one million, four hundred seventy-three thousand, four hundred thirteen".