2630961 has 18 divisors (see below), whose sum is σ = 3956082. Its totient is φ = 1749600.

The previous prime is 2630951. The next prime is 2630989. The reversal of 2630961 is 1690362.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 6561 = 1620^2 + 81^2 .

It is not a de Polignac number, because 2630961 - 2⁷ = 2630833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2630921) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6361 + ... + 6761.

2^2630961 is an apocalyptic number.

It is an amenable number.

2630961 is a deficient number, since it is larger than the sum of its proper divisors (1325121).

2630961 is an frugal number, since it uses more digits than its factorization.

2630961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2630961 is about 1622.0237359546. The cubic root of 2630961 is about 138.0505485898.

The spelling of 2630961 in words is "two million, six hundred thirty thousand, nine hundred sixty-one".