82441987 has 2 divisors, whose sum is σ = 82441988. Its totient is φ = 82441986.

The previous prime is 82441981. The next prime is 82442011. The reversal of 82441987 is 78914428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82441987 - 2⁷ = 82441859 is a prime.

It is not a weakly prime, because it can be changed into another prime (82441981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41220993 + 41220994.

It is an arithmetic number, because the mean of its divisors is an integer number (41220994).

Almost surely, 2^82441987 is an apocalyptic number.

82441987 is a deficient number, since it is larger than the sum of its proper divisors (1).

82441987 is an equidigital number, since it uses as much as digits as its factorization.

82441987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 82441987 is about 9079.7569901402. The cubic root of 82441987 is about 435.2273211829.

The spelling of 82441987 in words is "eighty-two million, four hundred forty-one thousand, nine hundred eighty-seven".