2660635 has 8 divisors (see below), whose sum is σ = 3203136. Its totient is φ = 2121600.

The previous prime is 2660621. The next prime is 2660639. The reversal of 2660635 is 5360662.

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

It is not a de Polignac number, because 2660635 - 2¹³ = 2652443 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 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (400392).

2^2660635 is an apocalyptic number.

2660635 is a deficient number, since it is larger than the sum of its proper divisors (542501).

2660635 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (2660634) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1733).

2660635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 2660635 is about 1631.1453031536. The cubic root of 2660635 is about 138.5676228401.

The spelling of 2660635 in words is "two million, six hundred sixty thousand, six hundred thirty-five".