71424117 has 12 divisors (see below), whose sum is σ = 103478700. Its totient is φ = 47472768.

The previous prime is 71424109. The next prime is 71424139. The reversal of 71424117 is 71142417.

It can be written as a sum of positive squares in 2 ways, for example, as 5716881 + 65707236 = 2391^2 + 8106^2 .

It is not a de Polignac number, because 71424117 - 2³ = 71424109 is a prime.

It is a super-3 number, since 3×71424117³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71420117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8742 + ... + 14807.

It is an arithmetic number, because the mean of its divisors is an integer number (8623225).

Almost surely, 2^71424117 is an apocalyptic number.

It is an amenable number.

71424117 is a deficient number, since it is larger than the sum of its proper divisors (32054583).

71424117 is a wasteful number, since it uses less digits than its factorization.

71424117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23892 (or 23889 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 71424117 is about 8451.2790156283. The cubic root of 71424117 is about 414.9046415634.

The spelling of 71424117 in words is "seventy-one million, four hundred twenty-four thousand, one hundred seventeen".