292421 has 4 divisors (see below), whose sum is σ = 294144. Its totient is φ = 290700.

The previous prime is 292393. The next prime is 292427. The reversal of 292421 is 124292.

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 292421 - 2¹⁴ = 276037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 292393 and 292402.

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 292421.

It is not an unprimeable number, because it can be changed into a prime (292427) 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, 575 + ... + 956.

It is an arithmetic number, because the mean of its divisors is an integer number (73536).

2²⁹²⁴²¹ is an apocalyptic number.

It is an amenable number.

292421 is a deficient number, since it is larger than the sum of its proper divisors (1723).

292421 is a wasteful number, since it uses less digits than its factorization.

292421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722.

The product of its digits is 288, while the sum is 20.

The square root of 292421 is about 540.7596508616. The cubic root of 292421 is about 66.3747430190.

The spelling of 292421 in words is "two hundred ninety-two thousand, four hundred twenty-one".