71995834 has 4 divisors (see below), whose sum is σ = 107993754. Its totient is φ = 35997916.

The previous prime is 71995831. The next prime is 71995837. The reversal of 71995834 is 43859917.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (71995831) and next prime (71995837).

It can be written as a sum of positive squares in only one way, i.e., 64722025 + 7273809 = 8045^2 + 2697^2 .

It is a super-2 number, since 2×71995834² = 10366800226711112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71995831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17998957 + ... + 17998960.

Almost surely, 2^71995834 is an apocalyptic number.

71995834 is a deficient number, since it is larger than the sum of its proper divisors (35997920).

71995834 is a wasteful number, since it uses less digits than its factorization.

71995834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35997919.

The product of its digits is 272160, while the sum is 46.

The square root of 71995834 is about 8485.0358867833. The cubic root of 71995834 is about 416.0087407249.

The spelling of 71995834 in words is "seventy-one million, nine hundred ninety-five thousand, eight hundred thirty-four".