2664669 has 12 divisors (see below), whose sum is σ = 4133184. Its totient is φ = 1522584.

The previous prime is 2664661. The next prime is 2664689. The reversal of 2664669 is 9664662.

2664669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2664669 - 2³ = 2664661 is a prime.

It is a super-2 number, since 2×2664669² = 14200921759122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664661) 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 11 ways as a sum of consecutive naturals, for example, 8917 + ... + 9210.

It is an arithmetic number, because the mean of its divisors is an integer number (344432).

2^2664669 is an apocalyptic number.

It is an amenable number.

2664669 is a deficient number, since it is larger than the sum of its proper divisors (1468515).

2664669 is a wasteful number, since it uses less digits than its factorization.

2664669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18144 (or 18137 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 2664669 is about 1632.3813892593. The cubic root of 2664669 is about 138.6376186021.

It can be divided in two parts, 2664 and 669, that added together give a palindrome (3333).

The spelling of 2664669 in words is "two million, six hundred sixty-four thousand, six hundred sixty-nine".