65345986 has 16 divisors (see below), whose sum is σ = 100154880. Its totient is φ = 31968160.

The previous prime is 65345963. The next prime is 65345989. The reversal of 65345986 is 68954356.

65345986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65345989) 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, 17775 + ... + 21133.

It is an arithmetic number, because the mean of its divisors is an integer number (6259680).

Almost surely, 2^65345986 is an apocalyptic number.

65345986 is a deficient number, since it is larger than the sum of its proper divisors (34808894).

65345986 is a wasteful number, since it uses less digits than its factorization.

65345986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569.

The product of its digits is 777600, while the sum is 46.

The square root of 65345986 is about 8083.6864115328. The cubic root of 65345986 is about 402.7847060426.

The spelling of 65345986 in words is "sixty-five million, three hundred forty-five thousand, nine hundred eighty-six".