65453861 has 12 divisors (see below), whose sum is σ = 72292416. Its totient is φ = 59216520.

The previous prime is 65453831. The next prime is 65453863. The reversal of 65453861 is 16835456.

It is not a de Polignac number, because 65453861 - 2⁶ = 65453797 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 (65453863) 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, 26276 + ... + 28658.

It is an arithmetic number, because the mean of its divisors is an integer number (6024368).

Almost surely, 2^65453861 is an apocalyptic number.

It is an amenable number.

65453861 is a deficient number, since it is larger than the sum of its proper divisors (6838555).

65453861 is a wasteful number, since it uses less digits than its factorization.

65453861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632 (or 2621 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 65453861 is about 8090.3560490253. The cubic root of 65453861 is about 403.0062269807.

The spelling of 65453861 in words is "sixty-five million, four hundred fifty-three thousand, eight hundred sixty-one".