2630661 has 12 divisors (see below), whose sum is σ = 3855936. Its totient is φ = 1594120.

The previous prime is 2630627. The next prime is 2630681. The reversal of 2630661 is 1660362.

It is not a de Polignac number, because 2630661 - 2¹³ = 2622469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2630681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3261 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (321328).

2^2630661 is an apocalyptic number.

It is an amenable number.

2630661 is a deficient number, since it is larger than the sum of its proper divisors (1225275).

2630661 is a wasteful number, since it uses less digits than its factorization.

2630661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272 (or 7261 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2630661 is about 1621.9312562498. The cubic root of 2630661 is about 138.0453012374.

Subtracting from 2630661 its reverse (1660362), we obtain a cube (970299 = 99³).

The spelling of 2630661 in words is "two million, six hundred thirty thousand, six hundred sixty-one".