65828071 has 4 divisors (see below), whose sum is σ = 66191944. Its totient is φ = 65464200.

The previous prime is 65828053. The next prime is 65828099. The reversal of 65828071 is 17082856.

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

It is a cyclic number.

It is not a de Polignac number, because 65828071 - 2⁷ = 65827943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65828071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65828041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181665 + ... + 182026.

It is an arithmetic number, because the mean of its divisors is an integer number (16547986).

Almost surely, 2^65828071 is an apocalyptic number.

65828071 is a deficient number, since it is larger than the sum of its proper divisors (363873).

65828071 is a wasteful number, since it uses less digits than its factorization.

65828071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363872.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 65828071 is about 8113.4500060085. The cubic root of 65828071 is about 403.7727846126.

The spelling of 65828071 in words is "sixty-five million, eight hundred twenty-eight thousand, seventy-one".