71883888 has 40 divisors (see below), whose sum is σ = 196625808. Its totient is φ = 22551552.

The previous prime is 71883883. The next prime is 71883899. The reversal of 71883888 is 88838817.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 71883888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71883881) 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 7 ways as a sum of consecutive naturals, for example, 43231 + ... + 44862.

Almost surely, 2^71883888 is an apocalyptic number.

It is an amenable number.

71883888 is an abundant number, since it is smaller than the sum of its proper divisors (124741920).

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

71883888 is a wasteful number, since it uses less digits than its factorization.

71883888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88121 (or 88115 counting only the distinct ones).

The product of its digits is 688128, while the sum is 51.

The square root of 71883888 is about 8478.4366483450. The cubic root of 71883888 is about 415.7930121649.

It can be divided in two parts, 71883 and 888, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 71883888 in words is "seventy-one million, eight hundred eighty-three thousand, eight hundred eighty-eight".