623798 has 16 divisors (see below), whose sum is σ = 1132704. Its totient is φ = 251520.

The previous prime is 623771. The next prime is 623803. The reversal of 623798 is 897326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (70794).

2⁶²³⁷⁹⁸ is an apocalyptic number.

623798 is a deficient number, since it is larger than the sum of its proper divisors (508906).

623798 is a wasteful number, since it uses less digits than its factorization.

623798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647.

The product of its digits is 18144, while the sum is 35.

The square root of 623798 is about 789.8088376310. The cubic root of 623798 is about 85.4439517301.

The spelling of 623798 in words is "six hundred twenty-three thousand, seven hundred ninety-eight".