80863219 has 2 divisors, whose sum is σ = 80863220. Its totient is φ = 80863218.

The previous prime is 80863207. The next prime is 80863253. The reversal of 80863219 is 91236808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80863219 - 2⁵ = 80863187 is a prime.

It is a super-2 number, since 2×80863219² = 13077720374083922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80863619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40431609 + 40431610.

It is an arithmetic number, because the mean of its divisors is an integer number (40431610).

Almost surely, 2^80863219 is an apocalyptic number.

80863219 is a deficient number, since it is larger than the sum of its proper divisors (1).

80863219 is an equidigital number, since it uses as much as digits as its factorization.

80863219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 80863219 is about 8992.3978448465. The cubic root of 80863219 is about 432.4311877782.

The spelling of 80863219 in words is "eighty million, eight hundred sixty-three thousand, two hundred nineteen".