71634085 has 8 divisors (see below), whose sum is σ = 90485280. Its totient is φ = 54291024.

The previous prime is 71634077. The next prime is 71634091. The reversal of 71634085 is 58043617.

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 71634085 - 2³ = 71634077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71634085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376927 + ... + 377116.

It is an arithmetic number, because the mean of its divisors is an integer number (11310660).

Almost surely, 2^71634085 is an apocalyptic number.

It is an amenable number.

71634085 is a deficient number, since it is larger than the sum of its proper divisors (18851195).

71634085 is a wasteful number, since it uses less digits than its factorization.

71634085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754067.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 71634085 is about 8463.6921612261. The cubic root of 71634085 is about 415.3108137543.

The spelling of 71634085 in words is "seventy-one million, six hundred thirty-four thousand, eighty-five".