71223411 has 24 divisors (see below), whose sum is σ = 110787024. Its totient is φ = 40582080.

The previous prime is 71223403. The next prime is 71223413. The reversal of 71223411 is 11432217.

It is not a de Polignac number, because 71223411 - 2³ = 71223403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (71223413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96801 + ... + 97533.

It is an arithmetic number, because the mean of its divisors is an integer number (4616126).

Almost surely, 2^71223411 is an apocalyptic number.

71223411 is a deficient number, since it is larger than the sum of its proper divisors (39563613).

71223411 is a wasteful number, since it uses less digits than its factorization.

71223411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1404 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 71223411 is about 8439.3963646697. The cubic root of 71223411 is about 414.5156414237.

Adding to 71223411 its reverse (11432217), we get a palindrome (82655628).

The spelling of 71223411 in words is "seventy-one million, two hundred twenty-three thousand, four hundred eleven".