602391 has 4 divisors (see below), whose sum is σ = 803192. Its totient is φ = 401592.

The previous prime is 602383. The next prime is 602401. The reversal of 602391 is 193206.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 602391 - 2³ = 602383 is a prime.

It is a D-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 (602311) 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, 100396 + ... + 100401.

It is an arithmetic number, because the mean of its divisors is an integer number (200798).

2⁶⁰²³⁹¹ is an apocalyptic number.

602391 is a deficient number, since it is larger than the sum of its proper divisors (200801).

602391 is a wasteful number, since it uses less digits than its factorization.

602391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200800.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 602391 is about 776.1385185648. The cubic root of 602391 is about 84.4551540100.

Adding to 602391 its reverse (193206), we get a palindrome (795597).

The spelling of 602391 in words is "six hundred two thousand, three hundred ninety-one".