1982273 has 2 divisors, whose sum is σ = 1982274. Its totient is φ = 1982272.

The previous prime is 1982269. The next prime is 1982287. The reversal of 1982273 is 3722891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1329409 + 652864 = 1153^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1982273 - 2² = 1982269 is a prime.

It is equal to p₁₄₇₆₉₅ and since 1982273 and 147695 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1982203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991136 + 991137.

It is an arithmetic number, because the mean of its divisors is an integer number (991137).

2^1982273 is an apocalyptic number.

It is an amenable number.

1982273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982273 is an equidigital number, since it uses as much as digits as its factorization.

1982273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 1982273 is about 1407.9321716617. The cubic root of 1982273 is about 125.6187560736.

It can be divided in two parts, 198 and 2273, that multiplied together give a palindrome (450054).

The spelling of 1982273 in words is "one million, nine hundred eighty-two thousand, two hundred seventy-three".