71382765 has 16 divisors (see below), whose sum is σ = 114317568. Its totient is φ = 38035776.

The previous prime is 71382733. The next prime is 71382767. The reversal of 71382765 is 56728317.

It is not a de Polignac number, because 71382765 - 2⁵ = 71382733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71382767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28764 + ... + 31146.

It is an arithmetic number, because the mean of its divisors is an integer number (7144848).

Almost surely, 2^71382765 is an apocalyptic number.

It is an amenable number.

71382765 is a deficient number, since it is larger than the sum of its proper divisors (42934803).

71382765 is a wasteful number, since it uses less digits than its factorization.

71382765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388.

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

The square root of 71382765 is about 8448.8321678206. The cubic root of 71382765 is about 414.8245544741.

The spelling of 71382765 in words is "seventy-one million, three hundred eighty-two thousand, seven hundred sixty-five".