80289243 has 12 divisors (see below), whose sum is σ = 117122928. Its totient is φ = 52995600.

The previous prime is 80289241. The next prime is 80289257. The reversal of 80289243 is 34298208.

It is not a de Polignac number, because 80289243 - 2¹ = 80289241 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80289198 and 80289207.

It is not an unprimeable number, because it can be changed into a prime (80289241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43255 + ... + 45072.

It is an arithmetic number, because the mean of its divisors is an integer number (9760244).

Almost surely, 2^80289243 is an apocalyptic number.

80289243 is a deficient number, since it is larger than the sum of its proper divisors (36833685).

80289243 is a wasteful number, since it uses less digits than its factorization.

80289243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88434 (or 88431 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 80289243 is about 8960.4264965458. The cubic root of 80289243 is about 431.4056093766.

It can be divided in two parts, 8028 and 9243, that added together give a palindrome (17271).

The spelling of 80289243 in words is "eighty million, two hundred eighty-nine thousand, two hundred forty-three".