92421 has 20 divisors (see below), whose sum is σ = 158752. Its totient is φ = 52488.

The previous prime is 92419. The next prime is 92431. The reversal of 92421 is 12429.

It is not a de Polignac number, because 92421 - 2¹ = 92419 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 92394 and 92403.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 92421.

It is not an unprimeable number, because it can be changed into a prime (92401) 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 19 ways as a sum of consecutive naturals, for example, 486 + ... + 648.

2⁹²⁴²¹ is an apocalyptic number.

It is an amenable number.

92421 is a deficient number, since it is larger than the sum of its proper divisors (66331).

92421 is a wasteful number, since it uses less digits than its factorization.

92421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 173 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 92421 is about 304.0082235730. The cubic root of 92421 is about 45.2123298913.

The spelling of 92421 in words is "ninety-two thousand, four hundred twenty-one".