71889488 has 60 divisors (see below), whose sum is σ = 155552544. Its totient is φ = 32155200.

The previous prime is 71889487. The next prime is 71889491. The reversal of 71889488 is 88498817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71889487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137195 + ... + 137717.

Almost surely, 2^71889488 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 71889488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77776272).

71889488 is an abundant number, since it is smaller than the sum of its proper divisors (83663056).

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

71889488 is a wasteful number, since it uses less digits than its factorization.

71889488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 607 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 53.

The square root of 71889488 is about 8478.7668914766. The cubic root of 71889488 is about 415.8038091157.

The spelling of 71889488 in words is "seventy-one million, eight hundred eighty-nine thousand, four hundred eighty-eight".