71424771 has 8 divisors (see below), whose sum is σ = 103890624. Its totient is φ = 43287720.

The previous prime is 71424739. The next prime is 71424797. The reversal of 71424771 is 17742417.

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

It is not a de Polignac number, because 71424771 - 2⁵ = 71424739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2164387 = 71424771 / (7 + 1 + 4 + 2 + 4 + 7 + 7 + 1).

It is not an unprimeable number, because it can be changed into a prime (71424721) 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, 1082161 + ... + 1082226.

It is an arithmetic number, because the mean of its divisors is an integer number (12986328).

Almost surely, 2^71424771 is an apocalyptic number.

71424771 is a deficient number, since it is larger than the sum of its proper divisors (32465853).

71424771 is a wasteful number, since it uses less digits than its factorization.

71424771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164401.

The product of its digits is 10976, while the sum is 33.

The square root of 71424771 is about 8451.3177079080. The cubic root of 71424771 is about 414.9059079275.

The spelling of 71424771 in words is "seventy-one million, four hundred twenty-four thousand, seven hundred seventy-one".