618423 has 16 divisors (see below), whose sum is σ = 902496. Its totient is φ = 374400.

The previous prime is 618421. The next prime is 618437. The reversal of 618423 is 324816.

It is a happy number.

It is not a de Polignac number, because 618423 - 2¹ = 618421 is a prime.

618423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 618393 and 618402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3861 + ... + 4017.

It is an arithmetic number, because the mean of its divisors is an integer number (56406).

2⁶¹⁸⁴²³ is an apocalyptic number.

618423 is a deficient number, since it is larger than the sum of its proper divisors (284073).

618423 is a wasteful number, since it uses less digits than its factorization.

618423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its digits is 1152, while the sum is 24.

The square root of 618423 is about 786.3987538139. The cubic root of 618423 is about 85.1978321651.

The spelling of 618423 in words is "six hundred eighteen thousand, four hundred twenty-three".