9021084881 has 2 divisors, whose sum is σ = 9021084882. Its totient is φ = 9021084880.

The previous prime is 9021084869. The next prime is 9021084887. The reversal of 9021084881 is 1884801209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8453883025 + 567201856 = 91945^2 + 23816^2 .

It is a cyclic number.

It is not a de Polignac number, because 9021084881 - 2¹⁰ = 9021083857 is a prime.

It is a super-2 number, since 2×9021084881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9021084887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4510542440 + 4510542441.

It is an arithmetic number, because the mean of its divisors is an integer number (4510542441).

Almost surely, 2^9021084881 is an apocalyptic number.

It is an amenable number.

9021084881 is a deficient number, since it is larger than the sum of its proper divisors (1).

9021084881 is an equidigital number, since it uses as much as digits as its factorization.

9021084881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 41.

The square root of 9021084881 is about 94979.3918752905. The cubic root of 9021084881 is about 2081.7069384031.

The spelling of 9021084881 in words is "nine billion, twenty-one million, eighty-four thousand, eight hundred eighty-one".