65808946 has 16 divisors (see below), whose sum is σ = 116706240. Its totient is φ = 27231120.

The previous prime is 65808893. The next prime is 65808949. The reversal of 65808946 is 64980856.

65808946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65808896 and 65808905.

It is not an unprimeable number, because it can be changed into a prime (65808949) 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 7 ways as a sum of consecutive naturals, for example, 80640 + ... + 81451.

It is an arithmetic number, because the mean of its divisors is an integer number (7294140).

Almost surely, 2^65808946 is an apocalyptic number.

65808946 is a deficient number, since it is larger than the sum of its proper divisors (50897294).

65808946 is a wasteful number, since it uses less digits than its factorization.

65808946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162129.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 65808946 is about 8112.2713218925. The cubic root of 65808946 is about 403.7336781831.

The spelling of 65808946 in words is "sixty-five million, eight hundred eight thousand, nine hundred forty-six".