65989350 has 96 divisors (see below), whose sum is σ = 207843840. Its totient is φ = 15081120.

The previous prime is 65989333. The next prime is 65989351. The reversal of 65989350 is 5398956.

65989350 is a `hidden beast` number, since 6 + 598 + 9 + 3 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 65989296 and 65989305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65989351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5959 + ... + 12941.

It is an arithmetic number, because the mean of its divisors is an integer number (2165040).

Almost surely, 2^65989350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65989350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103921920).

65989350 is an abundant number, since it is smaller than the sum of its proper divisors (141854490).

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

65989350 is a wasteful number, since it uses less digits than its factorization.

65989350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011 (or 7000 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 65989350 is about 8123.3829160024. The cubic root of 65989350 is about 404.1022639201.

It can be divided in two parts, 659 and 89350, that added together give a palindrome (90009).

The spelling of 65989350 in words is "sixty-five million, nine hundred eighty-nine thousand, three hundred fifty".