602421 has 4 divisors (see below), whose sum is σ = 803232. Its totient is φ = 401612.

The previous prime is 602411. The next prime is 602431. The reversal of 602421 is 124206.

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 an interprime number because it is at equal distance from previous prime (602411) and next prime (602431).

It is a cyclic number.

It is not a de Polignac number, because 602421 - 2¹⁰ = 601397 is a prime.

It is a super-2 number, since 2×602421² = 725822122482, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 602421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (602401) 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, 100401 + ... + 100406.

It is an arithmetic number, because the mean of its divisors is an integer number (200808).

2⁶⁰²⁴²¹ is an apocalyptic number.

It is an amenable number.

602421 is a deficient number, since it is larger than the sum of its proper divisors (200811).

602421 is a wasteful number, since it uses less digits than its factorization.

602421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200810.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 602421 is about 776.1578447713. The cubic root of 602421 is about 84.4565559857.

Adding to 602421 its reverse (124206), we get a palindrome (726627).

The spelling of 602421 in words is "six hundred two thousand, four hundred twenty-one".