2669857 has 2 divisors, whose sum is σ = 2669858. Its totient is φ = 2669856.

The previous prime is 2669837. The next prime is 2669873. The reversal of 2669857 is 7589662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2509056 + 160801 = 1584^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 2669857 - 2⁷ = 2669729 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2669837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334928 + 1334929.

It is an arithmetic number, because the mean of its divisors is an integer number (1334929).

2^2669857 is an apocalyptic number.

It is an amenable number.

2669857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2669857 is an equidigital number, since it uses as much as digits as its factorization.

2669857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 2669857 is about 1633.9697059615. The cubic root of 2669857 is about 138.7275341707.

The spelling of 2669857 in words is "two million, six hundred sixty-nine thousand, eight hundred fifty-seven".