4421584997 has 2 divisors, whose sum is σ = 4421584998. Its totient is φ = 4421584996.

The previous prime is 4421584933. The next prime is 4421585033. The reversal of 4421584997 is 7994851244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3510088516 + 911496481 = 59246^2 + 30191^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421584997 - 2⁶ = 4421584933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4421584697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210792498 + 2210792499.

It is an arithmetic number, because the mean of its divisors is an integer number (2210792499).

Almost surely, 2^4421584997 is an apocalyptic number.

It is an amenable number.

4421584997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421584997 is an equidigital number, since it uses as much as digits as its factorization.

4421584997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The square root of 4421584997 is about 66494.9997894579. Note that the first 3 decimals coincide. The cubic root of 4421584997 is about 1641.3177240284.

The spelling of 4421584997 in words is "four billion, four hundred twenty-one million, five hundred eighty-four thousand, nine hundred ninety-seven".