2075621 has 2 divisors, whose sum is σ = 2075622. Its totient is φ = 2075620.

The previous prime is 2075611. The next prime is 2075641. The reversal of 2075621 is 1265702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2070721 + 4900 = 1439^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 2075621 - 2¹⁸ = 1813477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2075611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1037810 + 1037811.

It is an arithmetic number, because the mean of its divisors is an integer number (1037811).

2^2075621 is an apocalyptic number.

It is an amenable number.

2075621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2075621 is an equidigital number, since it uses as much as digits as its factorization.

2075621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2075621 is about 1440.7015652105. The cubic root of 2075621 is about 127.5604429552.

The spelling of 2075621 in words is "two million, seventy-five thousand, six hundred twenty-one".