623396 has 6 divisors (see below), whose sum is σ = 1090950. Its totient is φ = 311696.

The previous prime is 623393. The next prime is 623401. The reversal of 623396 is 693326.

It can be written as a sum of positive squares in only one way, i.e., 577600 + 45796 = 760^2 + 214^2 .

It is not an unprimeable number, because it can be changed into a prime (623393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77921 + ... + 77928.

It is an arithmetic number, because the mean of its divisors is an integer number (181825).

2⁶²³³⁹⁶ is an apocalyptic number.

It is an amenable number.

623396 is a deficient number, since it is larger than the sum of its proper divisors (467554).

623396 is a wasteful number, since it uses less digits than its factorization.

623396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155853 (or 155851 counting only the distinct ones).

The product of its digits is 5832, while the sum is 29.

The square root of 623396 is about 789.5543046555. The cubic root of 623396 is about 85.4255933033.

The spelling of 623396 in words is "six hundred twenty-three thousand, three hundred ninety-six".