1982573 has 2 divisors, whose sum is σ = 1982574. Its totient is φ = 1982572.

The previous prime is 1982567. The next prime is 1982579. The reversal of 1982573 is 3752891.

1982573 is nontrivially palindromic in base 4.

It is a balanced prime because it is at equal distance from previous prime (1982567) and next prime (1982579).

It can be written as a sum of positive squares in only one way, i.e., 1085764 + 896809 = 1042^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1982573 - 2⁶ = 1982509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991286 + 991287.

It is an arithmetic number, because the mean of its divisors is an integer number (991287).

2^1982573 is an apocalyptic number.

It is an amenable number.

1982573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982573 is an equidigital number, since it uses as much as digits as its factorization.

1982573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 1982573 is about 1408.0387068543. The cubic root of 1982573 is about 125.6250928607.

The spelling of 1982573 in words is "one million, nine hundred eighty-two thousand, five hundred seventy-three".