71224922 has 4 divisors (see below), whose sum is σ = 106837386. Its totient is φ = 35612460.

The previous prime is 71224843. The next prime is 71224927. The reversal of 71224922 is 22942217.

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., 43546801 + 27678121 = 6599^2 + 5261^2 .

It is not an unprimeable number, because it can be changed into a prime (71224927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17806229 + ... + 17806232.

Almost surely, 2^71224922 is an apocalyptic number.

71224922 is a deficient number, since it is larger than the sum of its proper divisors (35612464).

71224922 is a wasteful number, since it uses less digits than its factorization.

71224922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35612463.

The product of its digits is 4032, while the sum is 29.

The square root of 71224922 is about 8439.4858848155. The cubic root of 71224922 is about 414.5185727104.

The spelling of 71224922 in words is "seventy-one million, two hundred twenty-four thousand, nine hundred twenty-two".