65398636 has 12 divisors (see below), whose sum is σ = 114540160. Its totient is φ = 32672880.

The previous prime is 65398621. The next prime is 65398639. The reversal of 65398636 is 63689356.

It is not an unprimeable number, because it can be changed into a prime (65398639) 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, 396 + ... + 11443.

Almost surely, 2^65398636 is an apocalyptic number.

It is an amenable number.

65398636 is a deficient number, since it is larger than the sum of its proper divisors (49141524).

65398636 is a wasteful number, since it uses less digits than its factorization.

65398636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13224 (or 13222 counting only the distinct ones).

The product of its digits is 699840, while the sum is 46.

The square root of 65398636 is about 8086.9423146205. The cubic root of 65398636 is about 402.8928530671.

The spelling of 65398636 in words is "sixty-five million, three hundred ninety-eight thousand, six hundred thirty-six".