2667659 has 2 divisors, whose sum is σ = 2667660. Its totient is φ = 2667658.

The previous prime is 2667647. The next prime is 2667667. The reversal of 2667659 is 9567662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2667659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2667689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333829 + 1333830.

It is an arithmetic number, because the mean of its divisors is an integer number (1333830).

2^2667659 is an apocalyptic number.

2667659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2667659 is an equidigital number, since it uses as much as digits as its factorization.

2667659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 2667659 is about 1633.2969723844. The cubic root of 2667659 is about 138.6894538745.

The spelling of 2667659 in words is "two million, six hundred sixty-seven thousand, six hundred fifty-nine".