71170655 has 4 divisors (see below), whose sum is σ = 85404792. Its totient is φ = 56936520.

The previous prime is 71170651. The next prime is 71170657. The reversal of 71170655 is 55607117.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71170655 - 2² = 71170651 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 (71170651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7117061 + ... + 7117070.

It is an arithmetic number, because the mean of its divisors is an integer number (21351198).

Almost surely, 2^71170655 is an apocalyptic number.

71170655 is a deficient number, since it is larger than the sum of its proper divisors (14234137).

71170655 is a wasteful number, since it uses less digits than its factorization.

71170655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14234136.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 71170655 is about 8436.2702066731. The cubic root of 71170655 is about 414.4132706422.

The spelling of 71170655 in words is "seventy-one million, one hundred seventy thousand, six hundred fifty-five".