47669 has 4 divisors (see below), whose sum is σ = 48396. Its totient is φ = 46944.

The previous prime is 47659. The next prime is 47681. The reversal of 47669 is 96674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96674 = 2 ⋅48337.

It can be written as a sum of positive squares in 2 ways, for example, as 18769 + 28900 = 137^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 47669 - 2⁴ = 47653 is a prime.

It is a super-2 number, since 2×47669² = 4544667122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47609) 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, 254 + ... + 399.

It is an arithmetic number, because the mean of its divisors is an integer number (12099).

2⁴⁷⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

47669 is a deficient number, since it is larger than the sum of its proper divisors (727).

47669 is an equidigital number, since it uses as much as digits as its factorization.

47669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its digits is 9072, while the sum is 32.

The square root of 47669 is about 218.3323155193. The cubic root of 47669 is about 36.2586820267.

It can be divided in two parts, 476 and 69, that added together give a palindrome (545).

The spelling of 47669 in words is "forty-seven thousand, six hundred sixty-nine".