9056021 has 4 divisors (see below), whose sum is σ = 9752652. Its totient is φ = 8359392.

The previous prime is 9055993. The next prime is 9056023. The reversal of 9056021 is 1206509.

9056021 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 1206509 = 563 ⋅2143.

It can be written as a sum of positive squares in 2 ways, for example, as 3556996 + 5499025 = 1886^2 + 2345^2 .

It is a cyclic number.

It is not a de Polignac number, because 9056021 - 2¹⁴ = 9039637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9056023) 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, 348296 + ... + 348321.

It is an arithmetic number, because the mean of its divisors is an integer number (2438163).

Almost surely, 2^9056021 is an apocalyptic number.

It is an amenable number.

9056021 is a deficient number, since it is larger than the sum of its proper divisors (696631).

9056021 is a wasteful number, since it uses less digits than its factorization.

9056021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696630.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 9056021 is about 3009.3223489683. The cubic root of 9056021 is about 208.4390764881.

The spelling of 9056021 in words is "nine million, fifty-six thousand, twenty-one".