2660633 has 4 divisors (see below), whose sum is σ = 2732580. Its totient is φ = 2588688.

The previous prime is 2660621. The next prime is 2660639. The reversal of 2660633 is 3360662.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1968409 + 692224 = 1403^2 + 832^2 .

It is a cyclic number.

It is not a de Polignac number, because 2660633 - 2⁶ = 2660569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660639) 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, 35918 + ... + 35991.

It is an arithmetic number, because the mean of its divisors is an integer number (683145).

2^2660633 is an apocalyptic number.

It is an amenable number.

2660633 is a deficient number, since it is larger than the sum of its proper divisors (71947).

2660633 is an equidigital number, since it uses as much as digits as its factorization.

2660633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71946.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 2660633 is about 1631.1446900873. The cubic root of 2660633 is about 138.5675881196.

The spelling of 2660633 in words is "two million, six hundred sixty thousand, six hundred thirty-three".