71085077 has 8 divisors (see below), whose sum is σ = 83860992. Its totient is φ = 58964400.

The previous prime is 71085013. The next prime is 71085089. The reversal of 71085077 is 77058017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71085077 - 2⁶ = 71085013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71085097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163574 + ... + 164007.

It is an arithmetic number, because the mean of its divisors is an integer number (10482624).

Almost surely, 2^71085077 is an apocalyptic number.

It is an amenable number.

71085077 is a deficient number, since it is larger than the sum of its proper divisors (12775915).

71085077 is a wasteful number, since it uses less digits than its factorization.

71085077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327619.

The product of its (nonzero) digits is 13720, while the sum is 35.

The square root of 71085077 is about 8431.1966529076. The cubic root of 71085077 is about 414.2471025166.

The spelling of 71085077 in words is "seventy-one million, eighty-five thousand, seventy-seven".