71322328 has 32 divisors (see below), whose sum is σ = 166728960. Its totient is φ = 27787680.

The previous prime is 71322319. The next prime is 71322367. The reversal of 71322328 is 82322317.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 71322296 and 71322305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57276 + ... + 58507.

It is an arithmetic number, because the mean of its divisors is an integer number (5210280).

Almost surely, 2^71322328 is an apocalyptic number.

It is an amenable number.

71322328 is an abundant number, since it is smaller than the sum of its proper divisors (95406632).

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

71322328 is a wasteful number, since it uses less digits than its factorization.

71322328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115807 (or 115803 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 71322328 is about 8445.2547622911. The cubic root of 71322328 is about 414.7074495006.

The spelling of 71322328 in words is "seventy-one million, three hundred twenty-two thousand, three hundred twenty-eight".