612403 has 4 divisors (see below), whose sum is σ = 668088. Its totient is φ = 556720.

The previous prime is 612401. The next prime is 612407. The reversal of 612403 is 304216.

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

It is a cyclic number.

It is not a de Polignac number, because 612403 - 2¹ = 612401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612401) 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, 27826 + ... + 27847.

It is an arithmetic number, because the mean of its divisors is an integer number (167022).

2⁶¹²⁴⁰³ is an apocalyptic number.

612403 is a deficient number, since it is larger than the sum of its proper divisors (55685).

612403 is a wasteful number, since it uses less digits than its factorization.

612403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55684.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 612403 is about 782.5618186444. The cubic root of 612403 is about 84.9204792617.

Adding to 612403 its reverse (304216), we get a palindrome (916619).

The spelling of 612403 in words is "six hundred twelve thousand, four hundred three".