71528898 has 32 divisors (see below), whose sum is σ = 163814400. Its totient is φ = 20396880.

The previous prime is 71528893. The next prime is 71528917. The reversal of 71528898 is 89882517.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (71528893) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 25153 + ... + 27851.

It is an arithmetic number, because the mean of its divisors is an integer number (5119200).

Almost surely, 2^71528898 is an apocalyptic number.

71528898 is an abundant number, since it is smaller than the sum of its proper divisors (92285502).

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

71528898 is a wasteful number, since it uses less digits than its factorization.

71528898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342.

The product of its digits is 322560, while the sum is 48.

The square root of 71528898 is about 8457.4758645828. The cubic root of 71528898 is about 415.1074343229.

The spelling of 71528898 in words is "seventy-one million, five hundred twenty-eight thousand, eight hundred ninety-eight".