65965814 has 16 divisors (see below), whose sum is σ = 106748928. Its totient is φ = 30456192.

The previous prime is 65965813. The next prime is 65965841. The reversal of 65965814 is 41856956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65965811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16502 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (6671808).

Almost surely, 2^65965814 is an apocalyptic number.

65965814 is a deficient number, since it is larger than the sum of its proper divisors (40783114).

65965814 is a wasteful number, since it uses less digits than its factorization.

65965814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36679.

The product of its digits is 259200, while the sum is 44.

The square root of 65965814 is about 8121.9341292576. The cubic root of 65965814 is about 404.0542153494.

The spelling of 65965814 in words is "sixty-five million, nine hundred sixty-five thousand, eight hundred fourteen".