71922836 has 6 divisors (see below), whose sum is σ = 125864970. Its totient is φ = 35961416.

The previous prime is 71922827. The next prime is 71922839. The reversal of 71922836 is 63822917.

71922836 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in only one way, i.e., 38514436 + 33408400 = 6206^2 + 5780^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71922836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71922839) by changing a digit.

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, 8990351 + ... + 8990358.

It is an arithmetic number, because the mean of its divisors is an integer number (20977495).

Almost surely, 2^71922836 is an apocalyptic number.

It is an amenable number.

71922836 is a deficient number, since it is larger than the sum of its proper divisors (53942134).

71922836 is a wasteful number, since it uses less digits than its factorization.

71922836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17980713 (or 17980711 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 71922836 is about 8480.7332230179. The cubic root of 71922836 is about 415.8680933491.

The spelling of 71922836 in words is "seventy-one million, nine hundred twenty-two thousand, eight hundred thirty-six".