2664586 has 8 divisors (see below), whose sum is σ = 4005540. Its totient is φ = 1329408.

The previous prime is 2664577. The next prime is 2664589. The reversal of 2664586 is 6854662.

2664586 is a nontrivial binomial coefficient, being equal to C(2309, 2).

It can be written as a sum of positive squares in 2 ways, for example, as 1974025 + 690561 = 1405^2 + 831^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2664589) 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, 1 + ... + 2308.

2^2664586 is an apocalyptic number.

2664586 is the 2308-th triangular number.

2664586 is the 770-th centered nonagonal number.

2664586 is a deficient number, since it is larger than the sum of its proper divisors (1340954).

2664586 is a wasteful number, since it uses less digits than its factorization.

2664586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888.

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

The square root of 2664586 is about 1632.3559660809. The cubic root of 2664586 is about 138.6361791435.

The spelling of 2664586 in words is "two million, six hundred sixty-four thousand, five hundred eighty-six".