65432628 has 36 divisors (see below), whose sum is σ = 166142340. Its totient is φ = 21712896.

The previous prime is 65432623. The next prime is 65432651. The reversal of 65432628 is 82623456.

It can be written as a sum of positive squares in 2 ways, for example, as 63393444 + 2039184 = 7962^2 + 1428^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 65432592 and 65432601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65432623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4276 + ... + 12212.

It is an arithmetic number, because the mean of its divisors is an integer number (4615065).

Almost surely, 2^65432628 is an apocalyptic number.

It is an amenable number.

65432628 is an abundant number, since it is smaller than the sum of its proper divisors (100709712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65432628 is a wasteful number, since it uses less digits than its factorization.

65432628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176 (or 8171 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 65432628 is about 8089.0437012047. The cubic root of 65432628 is about 402.9626443382.

The spelling of 65432628 in words is "sixty-five million, four hundred thirty-two thousand, six hundred twenty-eight".