65105408 has 40 divisors (see below), whose sum is σ = 131475960. Its totient is φ = 32204800.

The previous prime is 65105389. The next prime is 65105413. The reversal of 65105408 is 80450156.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 51083 + ... + 52341.

It is an arithmetic number, because the mean of its divisors is an integer number (3286899).

Almost surely, 2^65105408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65105408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65737980).

65105408 is an abundant number, since it is smaller than the sum of its proper divisors (66370552).

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

65105408 is a wasteful number, since it uses less digits than its factorization.

65105408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1362 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 65105408 is about 8068.7922268454. The cubic root of 65105408 is about 402.2898003570.

The spelling of 65105408 in words is "sixty-five million, one hundred five thousand, four hundred eight".