2073800521 has 27 divisors (see below), whose sum is σ = 2341085877. Its totient is φ = 1836132480.

The previous prime is 2073800503. The next prime is 2073800569. The reversal of 2073800521 is 1250083702.

The square root of 2073800521 is 45539.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1547556921 + 526243600 = 39339^2 + 22940^2 .

It is not a de Polignac number, because 2073800521 - 2⁹ = 2073800009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2073800521.

It is not an unprimeable number, because it can be changed into a prime (2073800621) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18352161 + ... + 18352273.

Almost surely, 2^2073800521 is an apocalyptic number.

2073800521 is the 45539-th square number.

2073800521 is the 22770-th centered octagonal number.

It is an amenable number.

2073800521 is a deficient number, since it is larger than the sum of its proper divisors (267285356).

2073800521 is an equidigital number, since it uses as much as digits as its factorization.

2073800521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The cubic root of 2073800521 is about 1275.2313861231.

The spelling of 2073800521 in words is "two billion, seventy-three million, eight hundred thousand, five hundred twenty-one".