2663667 has 24 divisors (see below), whose sum is σ = 4169360. Its totient is φ = 1632960.

The previous prime is 2663651. The next prime is 2663669. The reversal of 2663667 is 7663662.

2663667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2663667 - 2⁴ = 2663651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2663669) 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 23 ways as a sum of consecutive naturals, for example, 6117 + ... + 6537.

2^2663667 is an apocalyptic number.

2663667 is a deficient number, since it is larger than the sum of its proper divisors (1505693).

2663667 is a wasteful number, since it uses less digits than its factorization.

2663667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 480 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 2663667 is about 1632.0744468314. The cubic root of 2663667 is about 138.6202390439.

The spelling of 2663667 in words is "two million, six hundred sixty-three thousand, six hundred sixty-seven".