71995892 has 6 divisors (see below), whose sum is σ = 125992818. Its totient is φ = 35997944.

The previous prime is 71995849. The next prime is 71995909. The reversal of 71995892 is 29859917.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70492816 + 1503076 = 8396^2 + 1226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71995892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8999483 + ... + 8999490.

It is an arithmetic number, because the mean of its divisors is an integer number (20998803).

Almost surely, 2^71995892 is an apocalyptic number.

It is an amenable number.

71995892 is a deficient number, since it is larger than the sum of its proper divisors (53996926).

71995892 is a wasteful number, since it uses less digits than its factorization.

71995892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17998977 (or 17998975 counting only the distinct ones).

The product of its digits is 408240, while the sum is 50.

The square root of 71995892 is about 8485.0393045642. The cubic root of 71995892 is about 416.0088524374.

The spelling of 71995892 in words is "seventy-one million, nine hundred ninety-five thousand, eight hundred ninety-two".