2665006 has 4 divisors (see below), whose sum is σ = 3997512. Its totient is φ = 1332502.

The previous prime is 2665001. The next prime is 2665007. The reversal of 2665006 is 6005662.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666250 + ... + 666253.

It is an arithmetic number, because the mean of its divisors is an integer number (999378).

2^2665006 is an apocalyptic number.

2665006 is a deficient number, since it is larger than the sum of its proper divisors (1332506).

2665006 is a wasteful number, since it uses less digits than its factorization.

2665006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332505.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2665006 is about 1632.4846094221. The cubic root of 2665006 is about 138.6434628436.

The spelling of 2665006 in words is "two million, six hundred sixty-five thousand, six".