91469 has 8 divisors (see below), whose sum is σ = 106560. Its totient is φ = 76896.

The previous prime is 91463. The next prime is 91493. The reversal of 91469 is 96419.

91469 is nontrivially palindromic in base 2.

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

It is a cyclic number.

It is not a de Polignac number, because 91469 - 2⁴ = 91453 is a prime.

It is a super-2 number, since 2×91469² = 16733155922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91463) 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 + ... + 600.

It is an arithmetic number, because the mean of its divisors is an integer number (13320).

2⁹¹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

91469 is a deficient number, since it is larger than the sum of its proper divisors (15091).

91469 is a wasteful number, since it uses less digits than its factorization.

91469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259.

The product of its digits is 1944, while the sum is 29.

The square root of 91469 is about 302.4384234848. The cubic root of 91469 is about 45.0565544090.

Subtracting 91469 from its reverse (96419), we obtain a triangular number (4950 = T₉₉).

The spelling of 91469 in words is "ninety-one thousand, four hundred sixty-nine".