80486819 has 16 divisors (see below), whose sum is σ = 95563776. Its totient is φ = 66333600.

The previous prime is 80486779. The next prime is 80486851. The reversal of 80486819 is 91868408.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80486819 - 2¹² = 80482723 is a prime.

It is a super-2 number, since 2×80486819² = 12956256065477522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80486819.

It is not an unprimeable number, because it can be changed into a prime (80486519) 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 in 15 ways as a sum of consecutive naturals, for example, 35129 + ... + 37349.

It is an arithmetic number, because the mean of its divisors is an integer number (5972736).

Almost surely, 2^80486819 is an apocalyptic number.

80486819 is a deficient number, since it is larger than the sum of its proper divisors (15076957).

80486819 is a wasteful number, since it uses less digits than its factorization.

80486819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 80486819 is about 8971.4446439801. Note that the first 3 decimals coincide. The cubic root of 80486819 is about 431.7591875609.

The spelling of 80486819 in words is "eighty million, four hundred eighty-six thousand, eight hundred nineteen".