71405117 has 8 divisors (see below), whose sum is σ = 86406336. Its totient is φ = 57604032.

The previous prime is 71405111. The next prime is 71405119. The reversal of 71405117 is 71150417.

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 71405117 - 2⁶ = 71405053 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 (71405111) 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, 299903 + ... + 300140.

It is an arithmetic number, because the mean of its divisors is an integer number (10800792).

Almost surely, 2^71405117 is an apocalyptic number.

It is an amenable number.

71405117 is a deficient number, since it is larger than the sum of its proper divisors (15001219).

71405117 is a wasteful number, since it uses less digits than its factorization.

71405117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600067.

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 71405117 is about 8450.1548506521. The cubic root of 71405117 is about 414.8678477948.

The spelling of 71405117 in words is "seventy-one million, four hundred five thousand, one hundred seventeen".