65573828 has 24 divisors (see below), whose sum is σ = 126790272. Its totient is φ = 29515904.

The previous prime is 65573803. The next prime is 65573831. The reversal of 65573828 is 82837556.

65573828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 19400 + ... + 22527.

It is an arithmetic number, because the mean of its divisors is an integer number (5282928).

Almost surely, 2^65573828 is an apocalyptic number.

65573828 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

65573828 is a deficient number, since it is larger than the sum of its proper divisors (61216444).

65573828 is a wasteful number, since it uses less digits than its factorization.

65573828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41971 (or 41969 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 65573828 is about 8097.7668526576. The cubic root of 65573828 is about 403.2522931383.

The spelling of 65573828 in words is "sixty-five million, five hundred seventy-three thousand, eight hundred twenty-eight".