71719530 has 32 divisors (see below), whose sum is σ = 174953088. Its totient is φ = 18811200.

The previous prime is 71719519. The next prime is 71719573. The reversal of 71719530 is 3591717.

It is a junction number, because it is equal to n+sod(n) for n = 71719491 and 71719500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17766 + ... + 21425.

It is an arithmetic number, because the mean of its divisors is an integer number (5467284).

Almost surely, 2^71719530 is an apocalyptic number.

71719530 is an abundant number, since it is smaller than the sum of its proper divisors (103233558).

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

71719530 is a wasteful number, since it uses less digits than its factorization.

71719530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39262.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 71719530 is about 8468.7383948260. The cubic root of 71719530 is about 415.4758754589.

The spelling of 71719530 in words is "seventy-one million, seven hundred nineteen thousand, five hundred thirty".