82981333 has 2 divisors, whose sum is σ = 82981334. Its totient is φ = 82981332.

The previous prime is 82981313. The next prime is 82981351. The reversal of 82981333 is 33318928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75916369 + 7064964 = 8713^2 + 2658^2 .

It is a cyclic number.

It is not a de Polignac number, because 82981333 - 2²⁵ = 49426901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82981292 and 82981301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82981313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41490666 + 41490667.

It is an arithmetic number, because the mean of its divisors is an integer number (41490667).

Almost surely, 2^82981333 is an apocalyptic number.

It is an amenable number.

82981333 is a deficient number, since it is larger than the sum of its proper divisors (1).

82981333 is an equidigital number, since it uses as much as digits as its factorization.

82981333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 82981333 is about 9109.4090368146. The cubic root of 82981333 is about 436.1743631783.

The spelling of 82981333 in words is "eighty-two million, nine hundred eighty-one thousand, three hundred thirty-three".