71757196 has 48 divisors (see below), whose sum is σ = 148490496. Its totient is φ = 29703744.

The previous prime is 71757173. The next prime is 71757199. The reversal of 71757196 is 69175717.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (71757199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128550 + ... + 129106.

It is an arithmetic number, because the mean of its divisors is an integer number (3093552).

Almost surely, 2^71757196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71757196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74245248).

71757196 is an abundant number, since it is smaller than the sum of its proper divisors (76733300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71757196 is a wasteful number, since it uses less digits than its factorization.

71757196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 716 counting only the distinct ones).

The product of its digits is 92610, while the sum is 43.

The square root of 71757196 is about 8470.9619288485. The cubic root of 71757196 is about 415.5485965876.

The spelling of 71757196 in words is "seventy-one million, seven hundred fifty-seven thousand, one hundred ninety-six".