71710660 has 48 divisors (see below), whose sum is σ = 173811456. Its totient is φ = 24342912.

The previous prime is 71710633. The next prime is 71710669. The reversal of 71710660 is 6601717.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (71710669) 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, 11934 + ... + 16906.

It is an arithmetic number, because the mean of its divisors is an integer number (3621072).

Almost surely, 2^71710660 is an apocalyptic number.

71710660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71710660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86905728).

71710660 is an abundant number, since it is smaller than the sum of its proper divisors (102100796).

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

71710660 is a wasteful number, since it uses less digits than its factorization.

71710660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092 (or 5090 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 71710660 is about 8468.2146878784. The cubic root of 71710660 is about 415.4587465915.

The spelling of 71710660 in words is "seventy-one million, seven hundred ten thousand, six hundred sixty".