2630027921 has 4 divisors (see below), whose sum is σ = 2644558644. Its totient is φ = 2615497200.

The previous prime is 2630027909. The next prime is 2630027929. The reversal of 2630027921 is 1297200362.

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 868127296 + 1761900625 = 29464^2 + 41975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2630027921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2630027929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7265090 + ... + 7265451.

It is an arithmetic number, because the mean of its divisors is an integer number (661139661).

Almost surely, 2^2630027921 is an apocalyptic number.

It is an amenable number.

2630027921 is a deficient number, since it is larger than the sum of its proper divisors (14530723).

2630027921 is a wasteful number, since it uses less digits than its factorization.

2630027921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14530722.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 2630027921 is about 51283.7978410336. The cubic root of 2630027921 is about 1380.3422663261.

The spelling of 2630027921 in words is "two billion, six hundred thirty million, twenty-seven thousand, nine hundred twenty-one".