624099 has 16 divisors (see below), whose sum is σ = 963072. Its totient is φ = 352128.

The previous prime is 624097. The next prime is 624119. The reversal of 624099 is 990426.

624099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 790²-1.

It is not a de Polignac number, because 624099 - 2¹ = 624097 is a prime.

624099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (624097) 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, 2242 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (60192).

2⁶²⁴⁰⁹⁹ is an apocalyptic number.

624099 is a deficient number, since it is larger than the sum of its proper divisors (338973).

624099 is a wasteful number, since it uses less digits than its factorization.

624099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 624099 is about 789.9993670884. Note that the first 3 decimals coincide. The cubic root of 624099 is about 85.4576925532.

The spelling of 624099 in words is "six hundred twenty-four thousand, ninety-nine".