71942851 has 8 divisors (see below), whose sum is σ = 74052800. Its totient is φ = 69863040.

The previous prime is 71942839. The next prime is 71942879. The reversal of 71942851 is 15824917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71942851 - 2¹⁹ = 71418563 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 71942851.

It is not an unprimeable number, because it can be changed into a prime (71942831) 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 7 ways as a sum of consecutive naturals, for example, 2646 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (9256600).

Almost surely, 2^71942851 is an apocalyptic number.

71942851 is a deficient number, since it is larger than the sum of its proper divisors (2109949).

71942851 is a wasteful number, since it uses less digits than its factorization.

71942851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15069.

The product of its digits is 20160, while the sum is 37.

The square root of 71942851 is about 8481.9131686194. The cubic root of 71942851 is about 415.9066662993.

The spelling of 71942851 in words is "seventy-one million, nine hundred forty-two thousand, eight hundred fifty-one".