82933381 has 2 divisors, whose sum is σ = 82933382. Its totient is φ = 82933380.

The previous prime is 82933373. The next prime is 82933387. The reversal of 82933381 is 18333928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49928356 + 33005025 = 7066^2 + 5745^2 .

It is a cyclic number.

It is not a de Polignac number, because 82933381 - 2³ = 82933373 is a prime.

It is a super-2 number, since 2×82933381² = 13755891368182322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82933381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82933387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41466690 + 41466691.

It is an arithmetic number, because the mean of its divisors is an integer number (41466691).

Almost surely, 2^82933381 is an apocalyptic number.

It is an amenable number.

82933381 is a deficient number, since it is larger than the sum of its proper divisors (1).

82933381 is an equidigital number, since it uses as much as digits as its factorization.

82933381 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 82933381 is about 9106.7766525813. The cubic root of 82933381 is about 436.0903303709.

The spelling of 82933381 in words is "eighty-two million, nine hundred thirty-three thousand, three hundred eighty-one".