75493 has 4 divisors (see below), whose sum is σ = 82368. Its totient is φ = 68620.

The previous prime is 75479. The next prime is 75503. The reversal of 75493 is 39457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75493 is a prime.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3421 + ... + 3442.

It is an arithmetic number, because the mean of its divisors is an integer number (20592).

2⁷⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

75493 is a deficient number, since it is larger than the sum of its proper divisors (6875).

75493 is a wasteful number, since it uses less digits than its factorization.

75493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874.

The product of its digits is 3780, while the sum is 28.

The square root of 75493 is about 274.7598951812. The cubic root of 75493 is about 42.2638342708.

The spelling of 75493 in words is "seventy-five thousand, four hundred ninety-three".