71889500 has 24 divisors (see below), whose sum is σ = 157007760. Its totient is φ = 28755600.

The previous prime is 71889497. The next prime is 71889511. The reversal of 71889500 is 598817.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 71390 + ... + 72389.

It is an arithmetic number, because the mean of its divisors is an integer number (6541990).

Almost surely, 2^71889500 is an apocalyptic number.

It is an amenable number.

71889500 is an abundant number, since it is smaller than the sum of its proper divisors (85118260).

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

71889500 is a wasteful number, since it uses less digits than its factorization.

71889500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143798 (or 143786 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 71889500 is about 8478.7675991267. The cubic root of 71889500 is about 415.8038322514.

The spelling of 71889500 in words is "seventy-one million, eight hundred eighty-nine thousand, five hundred".