2666967 has 4 divisors (see below), whose sum is σ = 3555960. Its totient is φ = 1777976.

The previous prime is 2666953. The next prime is 2666969. The reversal of 2666967 is 7696662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2666967 - 2¹⁵ = 2634199 is a prime.

It is a super-2 number, since 2×2666967² = 14225425958178, which contains 22 as substring.

It is a D-number.

2666967 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444492 + ... + 444497.

It is an arithmetic number, because the mean of its divisors is an integer number (888990).

2^2666967 is an apocalyptic number.

2666967 is a deficient number, since it is larger than the sum of its proper divisors (888993).

2666967 is an equidigital number, since it uses as much as digits as its factorization.

2666967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888992.

The product of its digits is 163296, while the sum is 42.

The square root of 2666967 is about 1633.0851171938. The cubic root of 2666967 is about 138.6774606623.

The spelling of 2666967 in words is "two million, six hundred sixty-six thousand, nine hundred sixty-seven".