71082039 has 32 divisors (see below), whose sum is σ = 112766976. Its totient is φ = 38972160.

The previous prime is 71082031. The next prime is 71082091. The reversal of 71082039 is 93028017.

It is a happy number.

It is not a de Polignac number, because 71082039 - 2³ = 71082031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71081997 and 71082015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71082031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88789 + ... + 89585.

It is an arithmetic number, because the mean of its divisors is an integer number (3523968).

Almost surely, 2^71082039 is an apocalyptic number.

71082039 is a deficient number, since it is larger than the sum of its proper divisors (41684937).

71082039 is a wasteful number, since it uses less digits than its factorization.

71082039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 71082039 is about 8431.0164867589. The cubic root of 71082039 is about 414.2412011344.

The spelling of 71082039 in words is "seventy-one million, eighty-two thousand, thirty-nine".