2792021 has 4 divisors (see below), whose sum is σ = 2819232. Its totient is φ = 2764812.

The previous prime is 2792011. The next prime is 2792051. The reversal of 2792021 is 1202972.

2792021 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 not a de Polignac number, because 2792021 - 2¹⁴ = 2775637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2792011) 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, 13451 + ... + 13656.

It is an arithmetic number, because the mean of its divisors is an integer number (704808).

2^2792021 is an apocalyptic number.

It is an amenable number.

2792021 is a deficient number, since it is larger than the sum of its proper divisors (27211).

2792021 is a wasteful number, since it uses less digits than its factorization.

2792021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27210.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2792021 is about 1670.9341698583. The cubic root of 2792021 is about 140.8119653711.

Adding to 2792021 its reverse (1202972), we get a palindrome (3994993).

The spelling of 2792021 in words is "two million, seven hundred ninety-two thousand, twenty-one".