2774021 has 4 divisors (see below), whose sum is σ = 2792544. Its totient is φ = 2755500.

The previous prime is 2774011. The next prime is 2774027. The reversal of 2774021 is 1204772.

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 2774021 - 2¹⁰ = 2772997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9035 + ... + 9336.

It is an arithmetic number, because the mean of its divisors is an integer number (698136).

2^2774021 is an apocalyptic number.

It is an amenable number.

2774021 is a deficient number, since it is larger than the sum of its proper divisors (18523).

2774021 is a wasteful number, since it uses less digits than its factorization.

2774021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18522.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 2774021 is about 1665.5392520142. The cubic root of 2774021 is about 140.5087105114.

Adding to 2774021 its reverse (1204772), we get a palindrome (3978793).

The spelling of 2774021 in words is "two million, seven hundred seventy-four thousand, twenty-one".