65389896 has 256 divisors, whose sum is σ = 223776000. Its totient is φ = 17418240.

The previous prime is 65389889. The next prime is 65389913. The reversal of 65389896 is 69898356.

65389896 = 214² + 215² + ... + 590².

65389896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 895716 + ... + 895788.

It is an arithmetic number, because the mean of its divisors is an integer number (874125).

Almost surely, 2^65389896 is an apocalyptic number.

65389896 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65389896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111888000).

65389896 is an abundant number, since it is smaller than the sum of its proper divisors (158386104).

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

65389896 is a wasteful number, since it uses less digits than its factorization.

65389896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 65389896 is about 8086.4019192716. The cubic root of 65389896 is about 402.8749044746.

The spelling of 65389896 in words is "sixty-five million, three hundred eighty-nine thousand, eight hundred ninety-six".