2996328721 has 8 divisors (see below), whose sum is σ = 3028955688. Its totient is φ = 2963760000.

The previous prime is 2996328719. The next prime is 2996328733. The reversal of 2996328721 is 1278236992.

It can be written as a sum of positive squares in 4 ways, for example, as 1028164225 + 1968164496 = 32065^2 + 44364^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2996328721 - 2¹ = 2996328719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2996328121) 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 7 ways as a sum of consecutive naturals, for example, 93181 + ... + 121141.

It is an arithmetic number, because the mean of its divisors is an integer number (378619461).

Almost surely, 2^2996328721 is an apocalyptic number.

It is an amenable number.

2996328721 is a deficient number, since it is larger than the sum of its proper divisors (32626967).

2996328721 is a wasteful number, since it uses less digits than its factorization.

2996328721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29123.

The product of its digits is 653184, while the sum is 49.

The square root of 2996328721 is about 54738.7314522359. The cubic root of 2996328721 is about 1441.6610078713.

The spelling of 2996328721 in words is "two billion, nine hundred ninety-six million, three hundred twenty-eight thousand, seven hundred twenty-one".