65438164 has 12 divisors (see below), whose sum is σ = 124927488. Its totient is φ = 29744600.

The previous prime is 65438159. The next prime is 65438167. The reversal of 65438164 is 46183456.

It is a happy number.

65438164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65438167) 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 3 ways as a sum of consecutive naturals, for example, 743572 + ... + 743659.

It is an arithmetic number, because the mean of its divisors is an integer number (10410624).

Almost surely, 2^65438164 is an apocalyptic number.

It is an amenable number.

65438164 is a deficient number, since it is larger than the sum of its proper divisors (59489324).

65438164 is a wasteful number, since it uses less digits than its factorization.

65438164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487246 (or 1487244 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 65438164 is about 8089.3858852202. The cubic root of 65438164 is about 402.9740083847.

The spelling of 65438164 in words is "sixty-five million, four hundred thirty-eight thousand, one hundred sixty-four".