623099 has 6 divisors (see below), whose sum is σ = 637380. Its totient is φ = 609116.

The previous prime is 623071. The next prime is 623107. The reversal of 623099 is 990326.

It is a de Polignac number, because none of the positive numbers 2^k-623099 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 623099.

It is not an unprimeable number, because it can be changed into a prime (623009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3392 + ... + 3570.

It is an arithmetic number, because the mean of its divisors is an integer number (106230).

2⁶²³⁰⁹⁹ is an apocalyptic number.

623099 is a deficient number, since it is larger than the sum of its proper divisors (14281).

623099 is an equidigital number, since it uses as much as digits as its factorization.

623099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 623099 is about 789.3662014553. The cubic root of 623099 is about 85.4120249180.

The spelling of 623099 in words is "six hundred twenty-three thousand, ninety-nine".