71844043 has 4 divisors (see below), whose sum is σ = 72284968. Its totient is φ = 71403120.

The previous prime is 71844037. The next prime is 71844061. The reversal of 71844043 is 34044817.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71844043 - 2⁵ = 71844011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71843996 and 71844014.

It is not an unprimeable number, because it can be changed into a prime (71844943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220218 + ... + 220543.

It is an arithmetic number, because the mean of its divisors is an integer number (18071242).

Almost surely, 2^71844043 is an apocalyptic number.

71844043 is a deficient number, since it is larger than the sum of its proper divisors (440925).

71844043 is a wasteful number, since it uses less digits than its factorization.

71844043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440924.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 71844043 is about 8476.0865380198. The cubic root of 71844043 is about 415.7161737382.

The spelling of 71844043 in words is "seventy-one million, eight hundred forty-four thousand, forty-three".