2664605 has 8 divisors (see below), whose sum is σ = 3300864. Its totient is φ = 2062800.

The previous prime is 2664601. The next prime is 2664643. The reversal of 2664605 is 5064662.

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

It is not a de Polignac number, because 2664605 - 2² = 2664601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664601) 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, 8441 + ... + 8750.

It is an arithmetic number, because the mean of its divisors is an integer number (412608).

2^2664605 is an apocalyptic number.

It is an amenable number.

2664605 is a deficient number, since it is larger than the sum of its proper divisors (636259).

2664605 is a wasteful number, since it uses less digits than its factorization.

2664605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17227.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2664605 is about 1632.3617858796. The cubic root of 2664605 is about 138.6365086608.

The spelling of 2664605 in words is "two million, six hundred sixty-four thousand, six hundred five".