612423 has 12 divisors (see below), whose sum is σ = 1011088. Its totient is φ = 349920.

The previous prime is 612407. The next prime is 612439. The reversal of 612423 is 324216.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (612407) and next prime (612439).

It is not a de Polignac number, because 612423 - 2⁴ = 612407 is a prime.

It is an Ulam number.

It is a Duffinian number.

612423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 612396 and 612405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4798 + ... + 4923.

2⁶¹²⁴²³ is an apocalyptic number.

612423 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

612423 is a deficient number, since it is larger than the sum of its proper divisors (398665).

612423 is a wasteful number, since it uses less digits than its factorization.

612423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9734 (or 9731 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 612423 is about 782.5745970832. The cubic root of 612423 is about 84.9214037026.

Adding to 612423 its reverse (324216), we get a palindrome (936639).

It can be divided in two parts, 612 and 423, that added together give a triangular number (1035 = T₄₅).

The spelling of 612423 in words is "six hundred twelve thousand, four hundred twenty-three".