71368756 has 6 divisors (see below), whose sum is σ = 124895330. Its totient is φ = 35684376.

The previous prime is 71368753. The next prime is 71368783. The reversal of 71368756 is 65786317.

It can be written as a sum of positive squares in only one way, i.e., 60372900 + 10995856 = 7770^2 + 3316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71368753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8921091 + ... + 8921098.

Almost surely, 2^71368756 is an apocalyptic number.

It is an amenable number.

71368756 is a deficient number, since it is larger than the sum of its proper divisors (53526574).

71368756 is a wasteful number, since it uses less digits than its factorization.

71368756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17842193 (or 17842191 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 71368756 is about 8448.0030776510. The cubic root of 71368756 is about 414.7974160027.

The spelling of 71368756 in words is "seventy-one million, three hundred sixty-eight thousand, seven hundred fifty-six".