2664685 has 8 divisors (see below), whose sum is σ = 3206880. Its totient is φ = 2125584.

The previous prime is 2664661. The next prime is 2664689. The reversal of 2664685 is 5864662.

2664685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2664685 - 2⁹ = 2664173 is a prime.

It is a super-2 number, since 2×2664685² = 14201092298450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2106 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (400860).

2^2664685 is an apocalyptic number.

It is an amenable number.

2664685 is a deficient number, since it is larger than the sum of its proper divisors (542195).

2664685 is a wasteful number, since it uses less digits than its factorization.

2664685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547.

The product of its digits is 69120, while the sum is 37.

The square root of 2664685 is about 1632.3862900674. The cubic root of 2664685 is about 138.6378960846.

The spelling of 2664685 in words is "two million, six hundred sixty-four thousand, six hundred eighty-five".