71387652 has 96 divisors (see below), whose sum is σ = 198295552. Its totient is φ = 19564416.

The previous prime is 71387651. The next prime is 71387711. The reversal of 71387652 is 25678317.

It is a self number, because there is not a number n which added to its sum of digits gives 71387652.

It is not an unprimeable number, because it can be changed into a prime (71387651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320013 + ... + 320235.

Almost surely, 2^71387652 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 71387652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99147776).

71387652 is an abundant number, since it is smaller than the sum of its proper divisors (126907900).

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

71387652 is a wasteful number, since it uses less digits than its factorization.

71387652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 375 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 71387652 is about 8449.1213744389. The cubic root of 71387652 is about 414.8340208176.

The spelling of 71387652 in words is "seventy-one million, three hundred eighty-seven thousand, six hundred fifty-two".