65237838 has 16 divisors (see below), whose sum is σ = 131631696. Its totient is φ = 21553280.

The previous prime is 65237813. The next prime is 65237873. The reversal of 65237838 is 83873256.

It is a self number, because there is not a number n which added to its sum of digits gives 65237838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47433 + ... + 48788.

It is an arithmetic number, because the mean of its divisors is an integer number (8226981).

Almost surely, 2^65237838 is an apocalyptic number.

65237838 is an abundant number, since it is smaller than the sum of its proper divisors (66393858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65237838 is a wasteful number, since it uses less digits than its factorization.

65237838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96339.

The product of its digits is 241920, while the sum is 42.

The square root of 65237838 is about 8076.9943667184. The cubic root of 65237838 is about 402.5623796430.

The spelling of 65237838 in words is "sixty-five million, two hundred thirty-seven thousand, eight hundred thirty-eight".