71323456 has 28 divisors (see below), whose sum is σ = 142276068. Its totient is φ = 35474432.

The previous prime is 71323451. The next prime is 71323459. The reversal of 71323456 is 65432317.

It can be written as a sum of positive squares in 2 ways, for example, as 41990400 + 29333056 = 6480^2 + 5416^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71323451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9780 + ... + 15436.

Almost surely, 2^71323456 is an apocalyptic number.

It is an amenable number.

71323456 is a deficient number, since it is larger than the sum of its proper divisors (70952612).

71323456 is a wasteful number, since it uses less digits than its factorization.

71323456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5866 (or 5856 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 71323456 is about 8445.3215450923. The cubic root of 71323456 is about 414.7096357610.

The spelling of 71323456 in words is "seventy-one million, three hundred twenty-three thousand, four hundred fifty-six".