2668667 has 8 divisors (see below), whose sum is σ = 2881440. Its totient is φ = 2464000.

The previous prime is 2668663. The next prime is 2668669. The reversal of 2668667 is 7668662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2668667 - 2² = 2668663 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6 + 6 + 8⁷ + 6³ + 6⁶ + 7³ .

It is not an unprimeable number, because it can be changed into a prime (2668663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 2667.

It is an arithmetic number, because the mean of its divisors is an integer number (360180).

2^2668667 is an apocalyptic number.

2668667 is the 1334-th pentagonal number.

2668667 is a deficient number, since it is larger than the sum of its proper divisors (212773).

2668667 is a wasteful number, since it uses less digits than its factorization.

2668667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053.

The product of its digits is 145152, while the sum is 41.

The square root of 2668667 is about 1633.6055215382. The cubic root of 2668667 is about 138.7069200456.

It can be divided in two parts, 2668 and 667, that multiplied together give a square (1779556 = 1334²).

The spelling of 2668667 in words is "two million, six hundred sixty-eight thousand, six hundred sixty-seven".