75730 has 8 divisors (see below), whose sum is σ = 136332. Its totient is φ = 30288.

The previous prime is 75721. The next prime is 75731. The reversal of 75730 is 3757.

It can be written as a sum of positive squares in 2 ways, for example, as 69169 + 6561 = 263^2 + 81^2 .

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

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (75731) 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, 3777 + ... + 3796.

2⁷⁵⁷³⁰ is an apocalyptic number.

75730 is a deficient number, since it is larger than the sum of its proper divisors (60602).

75730 is a wasteful number, since it uses less digits than its factorization.

75730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7580.

The product of its (nonzero) digits is 735, while the sum is 22.

The square root of 75730 is about 275.1908428709. The cubic root of 75730 is about 42.3080152550.

It can be divided in two parts, 757 and 30, that added together give a palindrome (787).

The spelling of 75730 in words is "seventy-five thousand, seven hundred thirty".