2021073 has 8 divisors (see below), whose sum is σ = 2701536. Its totient is φ = 1344000.

The previous prime is 2021053. The next prime is 2021077. The reversal of 2021073 is 3701202.

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

It is not a de Polignac number, because 2021073 - 2⁶ = 2021009 is a prime.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2021077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398 + ... + 2448.

It is an arithmetic number, because the mean of its divisors is an integer number (337692).

2^2021073 is an apocalyptic number.

It is an amenable number.

2021073 is a deficient number, since it is larger than the sum of its proper divisors (680463).

2021073 is a wasteful number, since it uses less digits than its factorization.

2021073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 2021073 is about 1421.6444703230. The cubic root of 2021073 is about 126.4330651426.

Adding to 2021073 its reverse (3701202), we get a palindrome (5722275).

It can be divided in two parts, 202 and 1073, that added together give a triangular number (1275 = T₅₀).

The spelling of 2021073 in words is "two million, twenty-one thousand, seventy-three".