65905244 has 6 divisors (see below), whose sum is σ = 115334184. Its totient is φ = 32952620.

The previous prime is 65905241. The next prime is 65905247. The reversal of 65905244 is 44250956.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65905241) and next prime (65905247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65905241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8238152 + ... + 8238159.

It is an arithmetic number, because the mean of its divisors is an integer number (19222364).

Almost surely, 2^65905244 is an apocalyptic number.

It is an amenable number.

65905244 is a deficient number, since it is larger than the sum of its proper divisors (49428940).

65905244 is a wasteful number, since it uses less digits than its factorization.

65905244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16476315 (or 16476313 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 65905244 is about 8118.2044812877. The cubic root of 65905244 is about 403.9305095654.

The spelling of 65905244 in words is "sixty-five million, nine hundred five thousand, two hundred forty-four".