75638365 has 8 divisors (see below), whose sum is σ = 99017568. Its totient is φ = 55009680.

The previous prime is 75638309. The next prime is 75638371. The reversal of 75638365 is 56383657.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75638365 - 2⁹ = 75637853 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 687567 + ... + 687676.

It is an arithmetic number, because the mean of its divisors is an integer number (12377196).

Almost surely, 2^75638365 is an apocalyptic number.

It is an amenable number.

75638365 is a deficient number, since it is larger than the sum of its proper divisors (23379203).

75638365 is a wasteful number, since it uses less digits than its factorization.

75638365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375259.

The product of its digits is 453600, while the sum is 43.

The square root of 75638365 is about 8697.0319649867. The cubic root of 75638365 is about 422.9094381815.

The spelling of 75638365 in words is "seventy-five million, six hundred thirty-eight thousand, three hundred sixty-five".