75386 has 4 divisors (see below), whose sum is σ = 113082. Its totient is φ = 37692.

The previous prime is 75377. The next prime is 75389. The reversal of 75386 is 68357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68357 = 17 ⋅4021.

It can be written as a sum of positive squares in only one way, i.e., 72361 + 3025 = 269^2 + 55^2 .

It is an Ulam number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (75389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18845 + ... + 18848.

2⁷⁵³⁸⁶ is an apocalyptic number.

75386 is a deficient number, since it is larger than the sum of its proper divisors (37696).

75386 is a wasteful number, since it uses less digits than its factorization.

75386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37695.

The product of its digits is 5040, while the sum is 29.

The square root of 75386 is about 274.5651106750. The cubic root of 75386 is about 42.2438572819.

Subtracting from 75386 its sum of digits (29), we obtain a palindrome (75357).

The spelling of 75386 in words is "seventy-five thousand, three hundred eighty-six".