2651867 has 2 divisors, whose sum is σ = 2651868. Its totient is φ = 2651866.

The previous prime is 2651837. The next prime is 2651893. The reversal of 2651867 is 7681562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2651867 - 2⁸ = 2651611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2651807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325933 + 1325934.

It is an arithmetic number, because the mean of its divisors is an integer number (1325934).

2^2651867 is an apocalyptic number.

2651867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651867 is an equidigital number, since it uses as much as digits as its factorization.

2651867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 2651867 is about 1628.4554031351. The cubic root of 2651867 is about 138.4152409235.

The spelling of 2651867 in words is "two million, six hundred fifty-one thousand, eight hundred sixty-seven".