71888898 has 16 divisors (see below), whose sum is σ = 143902080. Its totient is φ = 23942256.

The previous prime is 71888881. The next prime is 71888899. The reversal of 71888898 is 89888817.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71888899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448 + ... + 12476.

It is an arithmetic number, because the mean of its divisors is an integer number (8993880).

Almost surely, 2^71888898 is an apocalyptic number.

71888898 is an abundant number, since it is smaller than the sum of its proper divisors (72013182).

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

71888898 is a wasteful number, since it uses less digits than its factorization.

71888898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10361.

The product of its digits is 2064384, while the sum is 57.

The square root of 71888898 is about 8478.7320986100. The cubic root of 71888898 is about 415.8026716062.

The spelling of 71888898 in words is "seventy-one million, eight hundred eighty-eight thousand, eight hundred ninety-eight".