65353938 has 32 divisors (see below), whose sum is σ = 142756992. Its totient is φ = 19824000.

The previous prime is 65353931. The next prime is 65353949. The reversal of 65353938 is 83935356.

It is a super-2 number, since 2×65353938² = 8542274424215688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65353938.

It is not an unprimeable number, because it can be changed into a prime (65353931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363 + ... + 11438.

It is an arithmetic number, because the mean of its divisors is an integer number (4461156).

Almost surely, 2^65353938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65353938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71378496).

65353938 is an abundant number, since it is smaller than the sum of its proper divisors (77403054).

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

65353938 is a wasteful number, since it uses less digits than its factorization.

65353938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11890.

The product of its digits is 291600, while the sum is 42.

The square root of 65353938 is about 8084.1782513747. The cubic root of 65353938 is about 402.8010437667.

The spelling of 65353938 in words is "sixty-five million, three hundred fifty-three thousand, nine hundred thirty-eight".