65481928 has 16 divisors (see below), whose sum is σ = 124159500. Its totient is φ = 32372736.

The previous prime is 65481883. The next prime is 65481929. The reversal of 65481928 is 82918456.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64931364 + 550564 = 8058^2 + 742^2 .

It is a super-3 number, since 3×65481928³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (65481929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45273 + ... + 46696.

Almost surely, 2^65481928 is an apocalyptic number.

It is an amenable number.

65481928 is a deficient number, since it is larger than the sum of its proper divisors (58677572).

65481928 is a wasteful number, since it uses less digits than its factorization.

65481928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92064 (or 92060 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 65481928 is about 8092.0904592077. The cubic root of 65481928 is about 403.0638225613.

The spelling of 65481928 in words is "sixty-five million, four hundred eighty-one thousand, nine hundred twenty-eight".