75669 has 8 divisors (see below), whose sum is σ = 110112. Its totient is φ = 45840.

The previous prime is 75659. The next prime is 75679. The reversal of 75669 is 96657.

It is an interprime number because it is at equal distance from previous prime (75659) and next prime (75679).

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

It is not a de Polignac number, because 75669 - 2⁴ = 75653 is a prime.

It is a super-2 number, since 2×75669² = 11451595122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2293 = 75669 / (7 + 5 + 6 + 6 + 9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (13764).

2⁷⁵⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

75669 is a deficient number, since it is larger than the sum of its proper divisors (34443).

75669 is a wasteful number, since it uses less digits than its factorization.

75669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307.

The product of its digits is 11340, while the sum is 33.

The square root of 75669 is about 275.0799883670. The cubic root of 75669 is about 42.2966525974.

The spelling of 75669 in words is "seventy-five thousand, six hundred sixty-nine".