8758374221 has 2 divisors, whose sum is σ = 8758374222. Its totient is φ = 8758374220.

The previous prime is 8758374181. The next prime is 8758374253. The reversal of 8758374221 is 1224738578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6652849225 + 2105524996 = 81565^2 + 45886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8758374221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8758374271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4379187110 + 4379187111.

It is an arithmetic number, because the mean of its divisors is an integer number (4379187111).

Almost surely, 2^8758374221 is an apocalyptic number.

It is an amenable number.

8758374221 is a deficient number, since it is larger than the sum of its proper divisors (1).

8758374221 is an equidigital number, since it uses as much as digits as its factorization.

8758374221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 47.

The square root of 8758374221 is about 93586.1860586273. The cubic root of 8758374221 is about 2061.2998222782.

The spelling of 8758374221 in words is "eight billion, seven hundred fifty-eight million, three hundred seventy-four thousand, two hundred twenty-one".