71882765 has 4 divisors (see below), whose sum is σ = 86259324. Its totient is φ = 57506208.

The previous prime is 71882737. The next prime is 71882771. The reversal of 71882765 is 56728817.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8743849 + 63138916 = 2957^2 + 7946^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71882765 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7188272 + ... + 7188281.

It is an arithmetic number, because the mean of its divisors is an integer number (21564831).

Almost surely, 2^71882765 is an apocalyptic number.

It is an amenable number.

71882765 is a deficient number, since it is larger than the sum of its proper divisors (14376559).

71882765 is a wasteful number, since it uses less digits than its factorization.

71882765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14376558.

The product of its digits is 188160, while the sum is 44.

The square root of 71882765 is about 8478.3704212543. The cubic root of 71882765 is about 415.7908469231.

The spelling of 71882765 in words is "seventy-one million, eight hundred eighty-two thousand, seven hundred sixty-five".