80982019 has 2 divisors, whose sum is σ = 80982020. Its totient is φ = 80982018.

The previous prime is 80981993. The next prime is 80982037. The reversal of 80982019 is 91028908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80982019 - 2¹¹ = 80979971 is a prime.

It is a super-2 number, since 2×80982019² = 13116174802632722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80982119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40491009 + 40491010.

It is an arithmetic number, because the mean of its divisors is an integer number (40491010).

Almost surely, 2^80982019 is an apocalyptic number.

80982019 is a deficient number, since it is larger than the sum of its proper divisors (1).

80982019 is an equidigital number, since it uses as much as digits as its factorization.

80982019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 80982019 is about 8999.0010001111. The cubic root of 80982019 is about 432.6428525630.

It can be divided in two parts, 809 and 82019, that added together give a palindrome (82828).

The spelling of 80982019 in words is "eighty million, nine hundred eighty-two thousand, nineteen".