2630651 has 4 divisors (see below), whose sum is σ = 2633904. Its totient is φ = 2627400.

The previous prime is 2630627. The next prime is 2630681. The reversal of 2630651 is 1560362.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2630651 - 2⁶ = 2630587 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 641 + ... + 2381.

It is an arithmetic number, because the mean of its divisors is an integer number (658476).

2^2630651 is an apocalyptic number.

2630651 is a deficient number, since it is larger than the sum of its proper divisors (3253).

2630651 is a wasteful number, since it uses less digits than its factorization.

2630651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2630651 is about 1621.9281735021. The cubic root of 2630651 is about 138.0451263188.

The spelling of 2630651 in words is "two million, six hundred thirty thousand, six hundred fifty-one".