2790321 has 8 divisors (see below), whose sum is σ = 3916320. Its totient is φ = 1762272.

The previous prime is 2790311. The next prime is 2790331. The reversal of 2790321 is 1230972.

2790321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2790311) and next prime (2790331).

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

It is not a de Polignac number, because 2790321 - 2⁵ = 2790289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2790291 and 2790300.

It is not an unprimeable number, because it can be changed into a prime (2790311) 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 7 ways as a sum of consecutive naturals, for example, 24420 + ... + 24533.

It is an arithmetic number, because the mean of its divisors is an integer number (489540).

2^2790321 is an apocalyptic number.

It is an amenable number.

2790321 is a deficient number, since it is larger than the sum of its proper divisors (1125999).

2790321 is a wasteful number, since it uses less digits than its factorization.

2790321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48975.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2790321 is about 1670.4253949219. The cubic root of 2790321 is about 140.7833804689.

The spelling of 2790321 in words is "two million, seven hundred ninety thousand, three hundred twenty-one".