71656950 has 48 divisors (see below), whose sum is σ = 179988480. Its totient is φ = 18863520.

The previous prime is 71656939. The next prime is 71656979. The reversal of 71656950 is 5965617.

It is a junction number, because it is equal to n+sod(n) for n = 71656899 and 71656908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8827 + ... + 14873.

It is an arithmetic number, because the mean of its divisors is an integer number (3749760).

Almost surely, 2^71656950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71656950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89994240).

71656950 is an abundant number, since it is smaller than the sum of its proper divisors (108331530).

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

71656950 is a wasteful number, since it uses less digits than its factorization.

71656950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141 (or 6136 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 71656950 is about 8465.0428232821. The cubic root of 71656950 is about 415.3549969649.

The spelling of 71656950 in words is "seventy-one million, six hundred fifty-six thousand, nine hundred fifty".