71039085 has 16 divisors (see below), whose sum is σ = 122406144. Its totient is φ = 34972992.

The previous prime is 71039083. The next prime is 71039093. The reversal of 71039085 is 58093017.

It is not a de Polignac number, because 71039085 - 2¹ = 71039083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71039083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181957 + ... + 182346.

It is an arithmetic number, because the mean of its divisors is an integer number (7650384).

Almost surely, 2^71039085 is an apocalyptic number.

It is an amenable number.

71039085 is a deficient number, since it is larger than the sum of its proper divisors (51367059).

71039085 is a wasteful number, since it uses less digits than its factorization.

71039085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364324.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 71039085 is about 8428.4687221345. The cubic root of 71039085 is about 414.1577440375.

The spelling of 71039085 in words is "seventy-one million, thirty-nine thousand, eighty-five".