2696666 has 16 divisors (see below), whose sum is σ = 4718400. Its totient is φ = 1155420.

The previous prime is 2696663. The next prime is 2696669. The reversal of 2696666 is 6666962.

Added to its reverse (6666962) it gives a triangular number (9363628 = T₄₃₂₇).

2696666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2696663) and next prime (2696669).

It is not an unprimeable number, because it can be changed into a prime (2696663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (294900).

2^2696666 is an apocalyptic number.

2696666 is a deficient number, since it is larger than the sum of its proper divisors (2021734).

2696666 is an equidigital number, since it uses as much as digits as its factorization.

2696666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954 (or 3940 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 2696666 is about 1642.1528552483. The cubic root of 2696666 is about 139.1903263745.

Adding to 2696666 its reverse (6666962), we get a triangular number (9363628 = T₄₃₂₇).

The spelling of 2696666 in words is "two million, six hundred ninety-six thousand, six hundred sixty-six".