71222672 has 40 divisors (see below), whose sum is σ = 143669376. Its totient is φ = 34176896.

The previous prime is 71222653. The next prime is 71222677. The reversal of 71222672 is 27622217.

It is not an unprimeable number, because it can be changed into a prime (71222677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38963 + ... + 40749.

Almost surely, 2^71222672 is an apocalyptic number.

It is an amenable number.

71222672 is an abundant number, since it is smaller than the sum of its proper divisors (72446704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71222672 is a wasteful number, since it uses less digits than its factorization.

71222672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895 (or 1889 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 71222672 is about 8439.3525818039. The cubic root of 71222672 is about 414.5142077747.

Adding to 71222672 its reverse (27622217), we get a palindrome (98844889).

The spelling of 71222672 in words is "seventy-one million, two hundred twenty-two thousand, six hundred seventy-two".