65928164 has 24 divisors (see below), whose sum is σ = 118894776. Its totient is φ = 31968000.

The previous prime is 65928139. The next prime is 65928167. The reversal of 65928164 is 46182956.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1254400 + 64673764 = 1120^2 + 8042^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (65928167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28574 + ... + 30794.

It is an arithmetic number, because the mean of its divisors is an integer number (4953949).

Almost surely, 2^65928164 is an apocalyptic number.

It is an amenable number.

65928164 is a deficient number, since it is larger than the sum of its proper divisors (52966612).

65928164 is a wasteful number, since it uses less digits than its factorization.

65928164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2445 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 65928164 is about 8119.6160007725. The cubic root of 65928164 is about 403.9773293817.

The spelling of 65928164 in words is "sixty-five million, nine hundred twenty-eight thousand, one hundred sixty-four".