7268857 has 2 divisors, whose sum is σ = 7268858. Its totient is φ = 7268856.

The previous prime is 7268827. The next prime is 7268881. The reversal of 7268857 is 7588627.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7268416 + 441 = 2696^2 + 21^2 .

It is an emirp because it is prime and its reverse (7588627) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7268857 is a prime.

It is not a weakly prime, because it can be changed into another prime (7268827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3634428 + 3634429.

It is an arithmetic number, because the mean of its divisors is an integer number (3634429).

Almost surely, 2^7268857 is an apocalyptic number.

It is an amenable number.

7268857 is a deficient number, since it is larger than the sum of its proper divisors (1).

7268857 is an equidigital number, since it uses as much as digits as its factorization.

7268857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 43.

The square root of 7268857 is about 2696.0817865933. The cubic root of 7268857 is about 193.7114870381.

The spelling of 7268857 in words is "seven million, two hundred sixty-eight thousand, eight hundred fifty-seven".