71707197 has 16 divisors (see below), whose sum is σ = 100967360. Its totient is φ = 45142272.

The previous prime is 71707193. The next prime is 71707199. The reversal of 71707197 is 79170717.

It is not a de Polignac number, because 71707197 - 2² = 71707193 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 (71707193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17343 + ... + 21075.

It is an arithmetic number, because the mean of its divisors is an integer number (6310460).

Almost surely, 2^71707197 is an apocalyptic number.

It is an amenable number.

71707197 is a deficient number, since it is larger than the sum of its proper divisors (29260163).

71707197 is a wasteful number, since it uses less digits than its factorization.

71707197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092.

The product of its (nonzero) digits is 21609, while the sum is 39.

The square root of 71707197 is about 8468.0102149206. The cubic root of 71707197 is about 415.4520588048.

The spelling of 71707197 in words is "seventy-one million, seven hundred seven thousand, one hundred ninety-seven".