65604436 has 12 divisors (see below), whose sum is σ = 114972480. Its totient is φ = 32755160.

The previous prime is 65604431. The next prime is 65604503. The reversal of 65604436 is 63440656.

65604436 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 (65604431) 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, 8530 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (9581040).

Almost surely, 2^65604436 is an apocalyptic number.

It is an amenable number.

65604436 is a deficient number, since it is larger than the sum of its proper divisors (49368044).

65604436 is a wasteful number, since it uses less digits than its factorization.

65604436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23534 (or 23532 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 65604436 is about 8099.6565359279. The cubic root of 65604436 is about 403.3150256168.

The spelling of 65604436 in words is "sixty-five million, six hundred four thousand, four hundred thirty-six".