75978285 has 16 divisors (see below), whose sum is σ = 121778304. Its totient is φ = 40450752.

The previous prime is 75978281. The next prime is 75978293. The reversal of 75978285 is 58287957.

It is not a de Polignac number, because 75978285 - 2² = 75978281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75978281) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5064 + ... + 13326.

It is an arithmetic number, because the mean of its divisors is an integer number (7611144).

Almost surely, 2^75978285 is an apocalyptic number.

It is an amenable number.

75978285 is a deficient number, since it is larger than the sum of its proper divisors (45800019).

75978285 is a wasteful number, since it uses less digits than its factorization.

75978285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8884.

The product of its digits is 1411200, while the sum is 51.

The square root of 75978285 is about 8716.5523574404. The cubic root of 75978285 is about 423.5420120786.

The spelling of 75978285 in words is "seventy-five million, nine hundred seventy-eight thousand, two hundred eighty-five".