80359819 has 16 divisors (see below), whose sum is σ = 86134752. Its totient is φ = 74850048.

The previous prime is 80359793. The next prime is 80359823. The reversal of 80359819 is 91895308.

It is a cyclic number.

It is not a de Polignac number, because 80359819 - 2¹⁷ = 80228747 is a prime.

It is a super-2 number, since 2×80359819² = 12915401019425522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (80359619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83847 + ... + 84799.

It is an arithmetic number, because the mean of its divisors is an integer number (5383422).

Almost surely, 2^80359819 is an apocalyptic number.

80359819 is a deficient number, since it is larger than the sum of its proper divisors (5774933).

80359819 is a wasteful number, since it uses less digits than its factorization.

80359819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 80359819 is about 8964.3638368821. The cubic root of 80359819 is about 431.5319773447.

The spelling of 80359819 in words is "eighty million, three hundred fifty-nine thousand, eight hundred nineteen".