8128357 has 2 divisors, whose sum is σ = 8128358. Its totient is φ = 8128356.

The previous prime is 8128319. The next prime is 8128369. The reversal of 8128357 is 7538218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6974881 + 1153476 = 2641^2 + 1074^2 .

It is a cyclic number.

It is not a de Polignac number, because 8128357 - 2¹⁵ = 8095589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8128957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4064178 + 4064179.

It is an arithmetic number, because the mean of its divisors is an integer number (4064179).

Almost surely, 2^8128357 is an apocalyptic number.

It is an amenable number.

8128357 is a deficient number, since it is larger than the sum of its proper divisors (1).

8128357 is an equidigital number, since it uses as much as digits as its factorization.

8128357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 8128357 is about 2851.0273586902. The cubic root of 8128357 is about 201.0639714533.

The spelling of 8128357 in words is "eight million, one hundred twenty-eight thousand, three hundred fifty-seven".