71993282 has 4 divisors (see below), whose sum is σ = 107989926. Its totient is φ = 35996640.

The previous prime is 71993269. The next prime is 71993329. The reversal of 71993282 is 28239917.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 55338721 + 16654561 = 7439^2 + 4081^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17998319 + ... + 17998322.

Almost surely, 2^71993282 is an apocalyptic number.

71993282 is a deficient number, since it is larger than the sum of its proper divisors (35996644).

71993282 is a wasteful number, since it uses less digits than its factorization.

71993282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35996643.

The product of its digits is 54432, while the sum is 41.

The square root of 71993282 is about 8484.8855030578. The cubic root of 71993282 is about 416.0038253162.

The spelling of 71993282 in words is "seventy-one million, nine hundred ninety-three thousand, two hundred eighty-two".