75386385 has 24 divisors (see below), whose sum is σ = 130876200. Its totient is φ = 40142592.

The previous prime is 75386383. The next prime is 75386393. The reversal of 75386385 is 58368357.

75386385 is a `hidden beast` number, since 7 + 5 + 3 + 8 + 638 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11370384 + 64016001 = 3372^2 + 8001^2 .

It is not a de Polignac number, because 75386385 - 2¹ = 75386383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 75386385.

It is not an unprimeable number, because it can be changed into a prime (75386383) 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 23 ways as a sum of consecutive naturals, for example, 46407 + ... + 48003.

It is an arithmetic number, because the mean of its divisors is an integer number (5453175).

Almost surely, 2^75386385 is an apocalyptic number.

It is an amenable number.

75386385 is a deficient number, since it is larger than the sum of its proper divisors (55489815).

75386385 is a wasteful number, since it uses less digits than its factorization.

75386385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657 (or 2654 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 75386385 is about 8682.5333284704. The cubic root of 75386385 is about 422.4392919555.

The spelling of 75386385 in words is "seventy-five million, three hundred eighty-six thousand, three hundred eighty-five".