71632443 has 4 divisors (see below), whose sum is σ = 95509928. Its totient is φ = 47754960.

The previous prime is 71632433. The next prime is 71632487. The reversal of 71632443 is 34423617.

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

It is not a de Polignac number, because 71632443 - 2⁴ = 71632427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71632443.

It is not an unprimeable number, because it can be changed into a prime (71632423) 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 3 ways as a sum of consecutive naturals, for example, 11938738 + ... + 11938743.

It is an arithmetic number, because the mean of its divisors is an integer number (23877482).

Almost surely, 2^71632443 is an apocalyptic number.

71632443 is a deficient number, since it is larger than the sum of its proper divisors (23877485).

71632443 is a wasteful number, since it uses less digits than its factorization.

71632443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23877484.

The product of its digits is 12096, while the sum is 30.

The square root of 71632443 is about 8463.5951580874. The cubic root of 71632443 is about 415.3076404718.

The spelling of 71632443 in words is "seventy-one million, six hundred thirty-two thousand, four hundred forty-three".