65023238 has 16 divisors (see below), whose sum is σ = 112349184. Its totient is φ = 27646920.

The previous prime is 65023207. The next prime is 65023243. The reversal of 65023238 is 83232056.

It is a super-5 number, since 5×65023238⁵ (a number of 40 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65023238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16508 + ... + 20063.

It is an arithmetic number, because the mean of its divisors is an integer number (7021824).

Almost surely, 2^65023238 is an apocalyptic number.

65023238 is a deficient number, since it is larger than the sum of its proper divisors (47325946).

65023238 is a wasteful number, since it uses less digits than its factorization.

65023238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36707.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 65023238 is about 8063.6987790964. The cubic root of 65023238 is about 402.1204848297.

The spelling of 65023238 in words is "sixty-five million, twenty-three thousand, two hundred thirty-eight".