65654613 has 12 divisors (see below), whose sum is σ = 97398028. Its totient is φ = 42586560.

The previous prime is 65654599. The next prime is 65654639. The reversal of 65654613 is 31645656.

It can be written as a sum of positive squares in 2 ways, for example, as 63632529 + 2022084 = 7977^2 + 1422^2 .

It is not a de Polignac number, because 65654613 - 2⁴ = 65654597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65604613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98248 + ... + 98913.

Almost surely, 2^65654613 is an apocalyptic number.

It is an amenable number.

65654613 is a deficient number, since it is larger than the sum of its proper divisors (31743415).

65654613 is a wasteful number, since it uses less digits than its factorization.

65654613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197204 (or 197201 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 65654613 is about 8102.7534209058. The cubic root of 65654613 is about 403.4178234461.

The spelling of 65654613 in words is "sixty-five million, six hundred fifty-four thousand, six hundred thirteen".