32809019 has 2 divisors, whose sum is σ = 32809020. Its totient is φ = 32809018.

The previous prime is 32809009. The next prime is 32809057. The reversal of 32809019 is 91090823.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32809019 is a prime.

It is a super-2 number, since 2×32809019² = 2152863455484722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32809009) 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, 16404509 + 16404510.

It is an arithmetic number, because the mean of its divisors is an integer number (16404510).

Almost surely, 2^32809019 is an apocalyptic number.

32809019 is a deficient number, since it is larger than the sum of its proper divisors (1).

32809019 is an equidigital number, since it uses as much as digits as its factorization.

32809019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 32809019 is about 5727.9157640454. The cubic root of 32809019 is about 320.1334697136.

The spelling of 32809019 in words is "thirty-two million, eight hundred nine thousand, nineteen".