71032039 has 4 divisors (see below), whose sum is σ = 76496056. Its totient is φ = 65568024.

The previous prime is 71032037. The next prime is 71032043. The reversal of 71032039 is 93023017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93023017 = 23 ⋅4044479.

It is a cyclic number.

It is not a de Polignac number, because 71032039 - 2¹ = 71032037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71032037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731989 + ... + 2732014.

It is an arithmetic number, because the mean of its divisors is an integer number (19124014).

Almost surely, 2^71032039 is an apocalyptic number.

71032039 is a deficient number, since it is larger than the sum of its proper divisors (5464017).

71032039 is a wasteful number, since it uses less digits than its factorization.

71032039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464016.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 71032039 is about 8428.0507236252. The cubic root of 71032039 is about 414.1440508621.

The spelling of 71032039 in words is "seventy-one million, thirty-two thousand, thirty-nine".