75047 has 8 divisors (see below), whose sum is σ = 87552. Its totient is φ = 63000.

The previous prime is 75041. The next prime is 75079. The reversal of 75047 is 74057.

It is a happy number.

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

It is not a de Polignac number, because 75047 - 2¹² = 70951 is a prime.

It is a Duffinian number.

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 (75041) 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, 422 + ... + 572.

It is an arithmetic number, because the mean of its divisors is an integer number (10944).

2⁷⁵⁰⁴⁷ is an apocalyptic number.

75047 is a deficient number, since it is larger than the sum of its proper divisors (12505).

75047 is a wasteful number, since it uses less digits than its factorization.

75047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 75047 is about 273.9470751806. The cubic root of 75047 is about 42.1804406112.

Subtracting from 75047 its reverse (74057), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 750 and 47, that added together give a palindrome (797).

The spelling of 75047 in words is "seventy-five thousand, forty-seven".