71860117 has 6 divisors (see below), whose sum is σ = 83592438. Its totient is φ = 61594344.

The previous prime is 71860093. The next prime is 71860141. The reversal of 71860117 is 71106817.

It is an interprime number because it is at equal distance from previous prime (71860093) and next prime (71860141).

It can be written as a sum of positive squares in only one way, i.e., 70324996 + 1535121 = 8386^2 + 1239^2 .

It is not a de Polignac number, because 71860117 - 2¹¹ = 71858069 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 (71860177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 733218 + ... + 733315.

It is an arithmetic number, because the mean of its divisors is an integer number (13932073).

Almost surely, 2^71860117 is an apocalyptic number.

It is an amenable number.

71860117 is a deficient number, since it is larger than the sum of its proper divisors (11732321).

71860117 is a wasteful number, since it uses less digits than its factorization.

71860117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466547 (or 1466540 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 71860117 is about 8477.0346820100. The cubic root of 71860117 is about 415.7471747937.

The spelling of 71860117 in words is "seventy-one million, eight hundred sixty thousand, one hundred seventeen".