1980573 has 16 divisors (see below), whose sum is σ = 3100800. Its totient is φ = 1100736.

The previous prime is 1980529. The next prime is 1980577. The reversal of 1980573 is 3750891.

It is not a de Polignac number, because 1980573 - 2⁸ = 1980317 is a prime.

It is a Curzon number.

1980573 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (193800).

2^1980573 is an apocalyptic number.

It is an amenable number.

1980573 is a deficient number, since it is larger than the sum of its proper divisors (1120227).

1980573 is a wasteful number, since it uses less digits than its factorization.

1980573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1980573 is about 1407.3283199026. The cubic root of 1980573 is about 125.5828355315.

The spelling of 1980573 in words is "one million, nine hundred eighty thousand, five hundred seventy-three".