71873560 has 64 divisors (see below), whose sum is σ = 177292800. Its totient is φ = 26006400.

The previous prime is 71873539. The next prime is 71873567. The reversal of 71873560 is 6537817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71873567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166545 + ... + 166975.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^71873560 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 71873560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88646400).

71873560 is an abundant number, since it is smaller than the sum of its proper divisors (105419240).

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

71873560 is a wasteful number, since it uses less digits than its factorization.

71873560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 71873560 is about 8477.8275519145. The cubic root of 71873560 is about 415.7730980319.

The spelling of 71873560 in words is "seventy-one million, eight hundred seventy-three thousand, five hundred sixty".