71850849 has 16 divisors (see below), whose sum is σ = 111344640. Its totient is φ = 40361040.

The previous prime is 71850841. The next prime is 71850851. The reversal of 71850849 is 94805817.

It is not a de Polignac number, because 71850849 - 2³ = 71850841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71850849.

It is not an unprimeable number, because it can be changed into a prime (71850841) 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 15 ways as a sum of consecutive naturals, for example, 27757 + ... + 30234.

It is an arithmetic number, because the mean of its divisors is an integer number (6959040).

Almost surely, 2^71850849 is an apocalyptic number.

It is an amenable number.

71850849 is a deficient number, since it is larger than the sum of its proper divisors (39493791).

71850849 is a wasteful number, since it uses less digits than its factorization.

71850849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58060.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 71850849 is about 8476.4880109630. The cubic root of 71850849 is about 415.7293006671.

The spelling of 71850849 in words is "seventy-one million, eight hundred fifty thousand, eight hundred forty-nine".