65608431 has 24 divisors (see below), whose sum is σ = 103335552. Its totient is φ = 36270000.

The previous prime is 65608421. The next prime is 65608447. The reversal of 65608431 is 13480656.

It is not a de Polignac number, because 65608431 - 2⁷ = 65608303 is a prime.

It is a super-2 number, since 2×65608431² = 8608932436563522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65608392 and 65608401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65608421) 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 23 ways as a sum of consecutive naturals, for example, 18556 + ... + 21806.

It is an arithmetic number, because the mean of its divisors is an integer number (4305648).

Almost surely, 2^65608431 is an apocalyptic number.

65608431 is a deficient number, since it is larger than the sum of its proper divisors (37727121).

65608431 is a wasteful number, since it uses less digits than its factorization.

65608431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323 (or 3292 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 65608431 is about 8099.9031475691. The cubic root of 65608431 is about 403.3232121101.

The spelling of 65608431 in words is "sixty-five million, six hundred eight thousand, four hundred thirty-one".