80842743 has 24 divisors (see below), whose sum is σ = 121144608. Its totient is φ = 51907392.

The previous prime is 80842733. The next prime is 80842757. The reversal of 80842743 is 34724808.

It is not a de Polignac number, because 80842743 - 2⁵ = 80842711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80842698 and 80842707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80842733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33121 + ... + 35477.

It is an arithmetic number, because the mean of its divisors is an integer number (5047692).

Almost surely, 2^80842743 is an apocalyptic number.

80842743 is a deficient number, since it is larger than the sum of its proper divisors (40301865).

80842743 is a wasteful number, since it uses less digits than its factorization.

80842743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503 (or 2500 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 80842743 is about 8991.2592555214. The cubic root of 80842743 is about 432.3946849504.

The spelling of 80842743 in words is "eighty million, eight hundred forty-two thousand, seven hundred forty-three".