65604441 has 32 divisors (see below), whose sum is σ = 107163648. Its totient is φ = 34879680.

The previous prime is 65604431. The next prime is 65604503. The reversal of 65604441 is 14440656.

It is not a de Polignac number, because 65604441 - 2¹³ = 65596249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65604399 and 65604408.

It is not an unprimeable number, because it can be changed into a prime (65604421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16036 + ... + 19706.

It is an arithmetic number, because the mean of its divisors is an integer number (3348864).

Almost surely, 2^65604441 is an apocalyptic number.

It is an amenable number.

65604441 is a deficient number, since it is larger than the sum of its proper divisors (41559207).

65604441 is a wasteful number, since it uses less digits than its factorization.

65604441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 65604441 is about 8099.6568445830. The cubic root of 65604441 is about 403.3150358629.

It can be divided in two parts, 656044 and 41, that added together give a triangular number (656085 = T₁₁₄₅).

The spelling of 65604441 in words is "sixty-five million, six hundred four thousand, four hundred forty-one".