75499 has 4 divisors (see below), whose sum is σ = 76336. Its totient is φ = 74664.

The previous prime is 75479. The next prime is 75503. The reversal of 75499 is 99457.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 99457 = 271 ⋅367.

It is a cyclic number.

It is not a de Polignac number, because 75499 - 2¹³ = 67307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75479) 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, 264 + ... + 469.

It is an arithmetic number, because the mean of its divisors is an integer number (19084).

2⁷⁵⁴⁹⁹ is an apocalyptic number.

75499 is a deficient number, since it is larger than the sum of its proper divisors (837).

75499 is a wasteful number, since it uses less digits than its factorization.

75499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836.

The product of its digits is 11340, while the sum is 34.

The square root of 75499 is about 274.7708135883. The cubic root of 75499 is about 42.2649539167.

The spelling of 75499 in words is "seventy-five thousand, four hundred ninety-nine".