65617372 has 12 divisors (see below), whose sum is σ = 118790280. Its totient is φ = 31677296.

The previous prime is 65617361. The next prime is 65617379. The reversal of 65617372 is 27371656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65617379) 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 3 ways as a sum of consecutive naturals, for example, 282718 + ... + 282949.

It is an arithmetic number, because the mean of its divisors is an integer number (9899190).

Almost surely, 2^65617372 is an apocalyptic number.

It is an amenable number.

65617372 is a deficient number, since it is larger than the sum of its proper divisors (53172908).

65617372 is a wasteful number, since it uses less digits than its factorization.

65617372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565700 (or 565698 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 65617372 is about 8100.4550489463. The cubic root of 65617372 is about 403.3415326673.

The spelling of 65617372 in words is "sixty-five million, six hundred seventeen thousand, three hundred seventy-two".