6455857 has 2 divisors, whose sum is σ = 6455858. Its totient is φ = 6455856.

The previous prime is 6455837. The next prime is 6455863. The reversal of 6455857 is 7585546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5340721 + 1115136 = 2311^2 + 1056^2 .

It is a cyclic number.

It is not a de Polignac number, because 6455857 - 2¹¹ = 6453809 is a prime.

It is not a weakly prime, because it can be changed into another prime (6455837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3227928 + 3227929.

It is an arithmetic number, because the mean of its divisors is an integer number (3227929).

Almost surely, 2^6455857 is an apocalyptic number.

It is an amenable number.

6455857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6455857 is an equidigital number, since it uses as much as digits as its factorization.

6455857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 40.

The square root of 6455857 is about 2540.8378539372. The cubic root of 6455857 is about 186.2021254367.

The spelling of 6455857 in words is "six million, four hundred fifty-five thousand, eight hundred fifty-seven".