8874614821 has 2 divisors, whose sum is σ = 8874614822. Its totient is φ = 8874614820.

The previous prime is 8874614767. The next prime is 8874614851. The reversal of 8874614821 is 1284164788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5430216100 + 3444398721 = 73690^2 + 58689^2 .

It is a cyclic number.

It is not a de Polignac number, because 8874614821 - 2²¹ = 8872517669 is a prime.

It is a super-2 number, since 2×8874614821² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8874614851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4437307410 + 4437307411.

It is an arithmetic number, because the mean of its divisors is an integer number (4437307411).

Almost surely, 2^8874614821 is an apocalyptic number.

It is an amenable number.

8874614821 is a deficient number, since it is larger than the sum of its proper divisors (1).

8874614821 is an equidigital number, since it uses as much as digits as its factorization.

8874614821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688128, while the sum is 49.

The square root of 8874614821 is about 94205.1740670331. The cubic root of 8874614821 is about 2070.3789220520.

The spelling of 8874614821 in words is "eight billion, eight hundred seventy-four million, six hundred fourteen thousand, eight hundred twenty-one".