71388702 has 160 divisors (see below), whose sum is σ = 204906240. Its totient is φ = 18040320.

The previous prime is 71388683. The next prime is 71388703. The reversal of 71388702 is 20788317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71388703) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 735918 + ... + 736014.

It is an arithmetic number, because the mean of its divisors is an integer number (1280664).

Almost surely, 2^71388702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71388702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102453120).

71388702 is an abundant number, since it is smaller than the sum of its proper divisors (133517538).

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

71388702 is a wasteful number, since it uses less digits than its factorization.

71388702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 71388702 is about 8449.1835108488. The cubic root of 71388702 is about 414.8360546595.

The spelling of 71388702 in words is "seventy-one million, three hundred eighty-eight thousand, seven hundred two".