71424017 has 6 divisors (see below), whose sum is σ = 83085138. Its totient is φ = 61220544.

The previous prime is 71423999. The next prime is 71424037. The reversal of 71424017 is 71042417.

It can be written as a sum of positive squares in only one way, i.e., 71385601 + 38416 = 8449^2 + 196^2 .

It is not a de Polignac number, because 71424017 - 2¹² = 71419921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71424037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728768 + ... + 728865.

It is an arithmetic number, because the mean of its divisors is an integer number (13847523).

Almost surely, 2^71424017 is an apocalyptic number.

It is an amenable number.

71424017 is a deficient number, since it is larger than the sum of its proper divisors (11661121).

71424017 is a wasteful number, since it uses less digits than its factorization.

71424017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457647 (or 1457640 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 71424017 is about 8451.2730993620. The cubic root of 71424017 is about 414.9044479291.

The spelling of 71424017 in words is "seventy-one million, four hundred twenty-four thousand, seventeen".