2578267 has 2 divisors, whose sum is σ = 2578268. Its totient is φ = 2578266.

The previous prime is 2578259. The next prime is 2578273. The reversal of 2578267 is 7628752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2578267 - 2³ = 2578259 is a prime.

It is a Chen prime.

2578267 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2578207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289133 + 1289134.

It is an arithmetic number, because the mean of its divisors is an integer number (1289134).

2^2578267 is an apocalyptic number.

2578267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2578267 is an equidigital number, since it uses as much as digits as its factorization.

2578267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 2578267 is about 1605.6982904643. The cubic root of 2578267 is about 137.1226812354.

The spelling of 2578267 in words is "two million, five hundred seventy-eight thousand, two hundred sixty-seven".