2667646 has 8 divisors (see below), whose sum is σ = 4022784. Its totient is φ = 1326720.

The previous prime is 2667641. The next prime is 2667647. The reversal of 2667646 is 6467662.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667641) 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, 3070 + ... + 3841.

It is an arithmetic number, because the mean of its divisors is an integer number (502848).

2^2667646 is an apocalyptic number.

2667646 is a deficient number, since it is larger than the sum of its proper divisors (1355138).

2667646 is a wasteful number, since it uses less digits than its factorization.

2667646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7106.

The product of its digits is 72576, while the sum is 37.

The square root of 2667646 is about 1633.2929926991. The cubic root of 2667646 is about 138.6892285876.

The spelling of 2667646 in words is "two million, six hundred sixty-seven thousand, six hundred forty-six".