8939257 has 2 divisors, whose sum is σ = 8939258. Its totient is φ = 8939256.

The previous prime is 8939243. The next prime is 8939299. The reversal of 8939257 is 7529398.

It is a happy number.

8939257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4822416 + 4116841 = 2196^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 8939257 - 2¹¹ = 8937209 is a prime.

It is a d-powerful number, because it can be written as 8 + 9² + 3⁷ + 9⁶ + 2²³ + 5³ + 7⁵ .

It is equal to p₅₉₈₆₉₆ and since 8939257 and 598696 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8939057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4469628 + 4469629.

It is an arithmetic number, because the mean of its divisors is an integer number (4469629).

Almost surely, 2^8939257 is an apocalyptic number.

It is an amenable number.

8939257 is a deficient number, since it is larger than the sum of its proper divisors (1).

8939257 is an equidigital number, since it uses as much as digits as its factorization.

8939257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 8939257 is about 2989.8590267770. The cubic root of 8939257 is about 207.5393606079.

The spelling of 8939257 in words is "eight million, nine hundred thirty-nine thousand, two hundred fifty-seven".