65885406 has 16 divisors (see below), whose sum is σ = 132008448. Its totient is φ = 21922200.

The previous prime is 65885381. The next prime is 65885411. The reversal of 65885406 is 60458856.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6190 + ... + 13041.

It is an arithmetic number, because the mean of its divisors is an integer number (8250528).

Almost surely, 2^65885406 is an apocalyptic number.

65885406 is an abundant number, since it is smaller than the sum of its proper divisors (66123042).

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

65885406 is a wasteful number, since it uses less digits than its factorization.

65885406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19807.

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 65885406 is about 8116.9825674323. The cubic root of 65885406 is about 403.8899767382.

The spelling of 65885406 in words is "sixty-five million, eight hundred eighty-five thousand, four hundred six".