2669687 has 2 divisors, whose sum is σ = 2669688. Its totient is φ = 2669686.

The previous prime is 2669669. The next prime is 2669699. The reversal of 2669687 is 7869662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2669687 - 2⁸ = 2669431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2669987) 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, 1334843 + 1334844.

It is an arithmetic number, because the mean of its divisors is an integer number (1334844).

2^2669687 is an apocalyptic number.

2669687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2669687 is an equidigital number, since it uses as much as digits as its factorization.

2669687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 2669687 is about 1633.9176845851. The cubic root of 2669687 is about 138.7245896708.

The spelling of 2669687 in words is "two million, six hundred sixty-nine thousand, six hundred eighty-seven".