2990321 has 4 divisors (see below), whose sum is σ = 2995200. Its totient is φ = 2985444.

The previous prime is 2990279. The next prime is 2990333. The reversal of 2990321 is 1230992.

2990321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2990321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (748800).

2^2990321 is an apocalyptic number.

It is an amenable number.

2990321 is a deficient number, since it is larger than the sum of its proper divisors (4879).

2990321 is an equidigital number, since it uses as much as digits as its factorization.

2990321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2990321 is about 1729.2544636345. The cubic root of 2990321 is about 144.0696839945.

The spelling of 2990321 in words is "two million, nine hundred ninety thousand, three hundred twenty-one".