71472500 has 120 divisors (see below), whose sum is σ = 179492544. Its totient is φ = 24640000.

The previous prime is 71472497. The next prime is 71472521. The reversal of 71472500 is 527417.

It is a self number, because there is not a number n which added to its sum of digits gives 71472500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 632444 + ... + 632556.

Almost surely, 2^71472500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71472500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89746272).

71472500 is an abundant number, since it is smaller than the sum of its proper divisors (108020044).

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

71472500 is a wasteful number, since it uses less digits than its factorization.

71472500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 71472500 is about 8454.1409971682. The cubic root of 71472500 is about 414.9983064720.

Adding to 71472500 its reverse (527417), we get a palindrome (71999917).

The spelling of 71472500 in words is "seventy-one million, four hundred seventy-two thousand, five hundred".