65647996 has 24 divisors (see below), whose sum is σ = 119211120. Its totient is φ = 31594752.

The previous prime is 65647991. The next prime is 65648041. The reversal of 65647996 is 69974656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65647991) 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 7 ways as a sum of consecutive naturals, for example, 49575 + ... + 50881.

It is an arithmetic number, because the mean of its divisors is an integer number (4967130).

Almost surely, 2^65647996 is an apocalyptic number.

It is an amenable number.

65647996 is a deficient number, since it is larger than the sum of its proper divisors (53563124).

65647996 is a wasteful number, since it uses less digits than its factorization.

65647996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1771 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 52.

The square root of 65647996 is about 8102.3450926260. The cubic root of 65647996 is about 403.4042701693.

The spelling of 65647996 in words is "sixty-five million, six hundred forty-seven thousand, nine hundred ninety-six".