65876645 has 16 divisors (see below), whose sum is σ = 82232832. Its totient is φ = 50621760.

The previous prime is 65876639. The next prime is 65876647. The reversal of 65876645 is 54667856.

It is not a de Polignac number, because 65876645 - 2⁸ = 65876389 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 65876645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65876647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10604 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (5139552).

Almost surely, 2^65876645 is an apocalyptic number.

It is an amenable number.

65876645 is a deficient number, since it is larger than the sum of its proper divisors (16356187).

65876645 is a wasteful number, since it uses less digits than its factorization.

65876645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132.

The product of its digits is 1209600, while the sum is 47.

The square root of 65876645 is about 8116.4428785029. The cubic root of 65876645 is about 403.8720737500.

The spelling of 65876645 in words is "sixty-five million, eight hundred seventy-six thousand, six hundred forty-five".