71216701 has 4 divisors (see below), whose sum is σ = 71259804. Its totient is φ = 71173600.

The previous prime is 71216687. The next prime is 71216711. The reversal of 71216701 is 10761217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10761217 = 23 ⋅467879.

It can be written as a sum of positive squares in 2 ways, for example, as 47196900 + 24019801 = 6870^2 + 4901^2 .

It is a cyclic number.

It is not a de Polignac number, because 71216701 - 2¹¹ = 71214653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71216711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18970 + ... + 22411.

It is an arithmetic number, because the mean of its divisors is an integer number (17814951).

Almost surely, 2^71216701 is an apocalyptic number.

It is an amenable number.

71216701 is a deficient number, since it is larger than the sum of its proper divisors (43103).

71216701 is a wasteful number, since it uses less digits than its factorization.

71216701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43102.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 71216701 is about 8438.9988150254. The cubic root of 71216701 is about 414.5026237597.

Adding to 71216701 its reverse (10761217), we get a palindrome (81977918).

It can be divided in two parts, 71216 and 701, that added together give a palindrome (71917).

The spelling of 71216701 in words is "seventy-one million, two hundred sixteen thousand, seven hundred one".