82937389 has 2 divisors, whose sum is σ = 82937390. Its totient is φ = 82937388.

The previous prime is 82937381. The next prime is 82937447. The reversal of 82937389 is 98373928.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78464164 + 4473225 = 8858^2 + 2115^2 .

It is a cyclic number.

It is not a de Polignac number, because 82937389 - 2³ = 82937381 is a prime.

It is a super-2 number, since 2×82937389² = 13757220988274642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82937381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41468694 + 41468695.

It is an arithmetic number, because the mean of its divisors is an integer number (41468695).

Almost surely, 2^82937389 is an apocalyptic number.

It is an amenable number.

82937389 is a deficient number, since it is larger than the sum of its proper divisors (1).

82937389 is an equidigital number, since it uses as much as digits as its factorization.

82937389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 82937389 is about 9106.9967058301. The cubic root of 82937389 is about 436.0973553744.

The spelling of 82937389 in words is "eighty-two million, nine hundred thirty-seven thousand, three hundred eighty-nine".