73969 has 4 divisors (see below), whose sum is σ = 84544. Its totient is φ = 63396.

The previous prime is 73961. The next prime is 73973. The reversal of 73969 is 96937.

73969 is nontrivially palindromic in base 5.

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.

It is a cyclic number.

It is not a de Polignac number, because 73969 - 2³ = 73961 is a prime.

It is a super-2 number, since 2×73969² = 10942825922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

73969 is a lucky number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (73961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5277 + ... + 5290.

It is an arithmetic number, because the mean of its divisors is an integer number (21136).

2⁷³⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

73969 is a deficient number, since it is larger than the sum of its proper divisors (10575).

73969 is a wasteful number, since it uses less digits than its factorization.

73969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10574.

The product of its digits is 10206, while the sum is 34.

The square root of 73969 is about 271.9724250728. The cubic root of 73969 is about 41.9775011774.

It can be divided in two parts, 7396 and 9, that multiplied together give a square (66564 = 258²).

The spelling of 73969 in words is "seventy-three thousand, nine hundred sixty-nine".