71898132 has 24 divisors (see below), whose sum is σ = 167965056. Its totient is φ = 23937088.

The previous prime is 71898089. The next prime is 71898143. The reversal of 71898132 is 23189817.

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, 8293 + ... + 14579.

It is an arithmetic number, because the mean of its divisors is an integer number (6998544).

Almost surely, 2^71898132 is an apocalyptic number.

It is an amenable number.

71898132 is an abundant number, since it is smaller than the sum of its proper divisors (96066924).

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

71898132 is a wasteful number, since it uses less digits than its factorization.

71898132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247 (or 7245 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 71898132 is about 8479.2766200897. The cubic root of 71898132 is about 415.8204738798.

The spelling of 71898132 in words is "seventy-one million, eight hundred ninety-eight thousand, one hundred thirty-two".