71320116 has 24 divisors (see below), whose sum is σ = 190187200. Its totient is φ = 20377152.

The previous prime is 71320111. The next prime is 71320141. The reversal of 71320116 is 61102317.

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

It is a junction number, because it is equal to n+sod(n) for n = 71320092 and 71320101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71320111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424441 + ... + 424608.

Almost surely, 2^71320116 is an apocalyptic number.

It is an amenable number.

71320116 is an abundant number, since it is smaller than the sum of its proper divisors (118867084).

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

71320116 is a wasteful number, since it uses less digits than its factorization.

71320116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849063 (or 849061 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 71320116 is about 8445.1238001583. The cubic root of 71320116 is about 414.7031621926.

The spelling of 71320116 in words is "seventy-one million, three hundred twenty thousand, one hundred sixteen".