8874444421 has 2 divisors, whose sum is σ = 8874444422. Its totient is φ = 8874444420.

The previous prime is 8874444409. The next prime is 8874444433. The reversal of 8874444421 is 1244444788.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (8874444409) and next prime (8874444433).

It can be written as a sum of positive squares in only one way, i.e., 7945048225 + 929396196 = 89135^2 + 30486^2 .

It is a cyclic number.

It is not a de Polignac number, because 8874444421 - 2⁹ = 8874443909 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8874444521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4437222210 + 4437222211.

It is an arithmetic number, because the mean of its divisors is an integer number (4437222211).

Almost surely, 2^8874444421 is an apocalyptic number.

It is an amenable number.

8874444421 is a deficient number, since it is larger than the sum of its proper divisors (1).

8874444421 is an equidigital number, since it uses as much as digits as its factorization.

8874444421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 917504, while the sum is 46.

The square root of 8874444421 is about 94204.2696537689. The cubic root of 8874444421 is about 2070.3656709670.

The spelling of 8874444421 in words is "eight billion, eight hundred seventy-four million, four hundred forty-four thousand, four hundred twenty-one".