603406 has 4 divisors (see below), whose sum is σ = 905112. Its totient is φ = 301702.

The previous prime is 603401. The next prime is 603431. The reversal of 603406 is 604306.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (603401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150850 + ... + 150853.

It is an arithmetic number, because the mean of its divisors is an integer number (226278).

2⁶⁰³⁴⁰⁶ is an apocalyptic number.

603406 is a deficient number, since it is larger than the sum of its proper divisors (301706).

603406 is a wasteful number, since it uses less digits than its factorization.

603406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301705.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 603406 is about 776.7921214842. The cubic root of 603406 is about 84.5025616907.

Subtracting 603406 from its reverse (604306), we obtain a square (900 = 30²).

The spelling of 603406 in words is "six hundred three thousand, four hundred six".