73669 has 4 divisors (see below), whose sum is σ = 76896. Its totient is φ = 70444.

The previous prime is 73651. The next prime is 73673. The reversal of 73669 is 96637.

73669 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96637 = 41 ⋅2357.

It is a cyclic number.

It is not a de Polignac number, because 73669 - 2⁵ = 73637 is a prime.

It is a super-2 number, since 2×73669² = 10854243122, which contains 22 as substring.

It is a Duffinian number.

73669 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 73669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73609) 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, 1579 + ... + 1624.

It is an arithmetic number, because the mean of its divisors is an integer number (19224).

2⁷³⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

73669 is a deficient number, since it is larger than the sum of its proper divisors (3227).

73669 is a wasteful number, since it uses less digits than its factorization.

73669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226.

The product of its digits is 6804, while the sum is 31.

The square root of 73669 is about 271.4203382210. The cubic root of 73669 is about 41.9206741559.

The spelling of 73669 in words is "seventy-three thousand, six hundred sixty-nine".