71745896 has 8 divisors (see below), whose sum is σ = 134523570. Its totient is φ = 35872944.

The previous prime is 71745893. The next prime is 71745907. The reversal of 71745896 is 69854717.

It can be written as a sum of positive squares in only one way, i.e., 71402500 + 343396 = 8450^2 + 586^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 71745896.

It is not an unprimeable number, because it can be changed into a prime (71745893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4484111 + ... + 4484126.

Almost surely, 2^71745896 is an apocalyptic number.

It is an amenable number.

71745896 is a deficient number, since it is larger than the sum of its proper divisors (62777674).

71745896 is a wasteful number, since it uses less digits than its factorization.

71745896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8968243 (or 8968239 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 71745896 is about 8470.2949181242. The cubic root of 71745896 is about 415.5267825355.

The spelling of 71745896 in words is "seventy-one million, seven hundred forty-five thousand, eight hundred ninety-six".