71383500 has 144 divisors (see below), whose sum is σ = 233382240. Its totient is φ = 18345600.

The previous prime is 71383469. The next prime is 71383517. The reversal of 71383500 is 538317.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 130227 + ... + 130773.

It is an arithmetic number, because the mean of its divisors is an integer number (1620710).

Almost surely, 2^71383500 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 71383500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116691120).

71383500 is an abundant number, since it is smaller than the sum of its proper divisors (161998740).

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

71383500 is a wasteful number, since it uses less digits than its factorization.

71383500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 71383500 is about 8448.8756648444. The cubic root of 71383500 is about 414.8259782304.

The spelling of 71383500 in words is "seventy-one million, three hundred eighty-three thousand, five hundred".