624001 has 8 divisors (see below), whose sum is σ = 721280. Its totient is φ = 528768.

The previous prime is 623989. The next prime is 624007. The reversal of 624001 is 100426.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 624001 - 2¹⁵ = 591233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624007) 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 in 7 ways as a sum of consecutive naturals, for example, 220 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (90160).

2⁶²⁴⁰⁰¹ is an apocalyptic number.

It is an amenable number.

624001 is a deficient number, since it is larger than the sum of its proper divisors (97279).

624001 is an equidigital number, since it uses as much as digits as its factorization.

624001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 624001 is about 789.9373392871. The cubic root of 624001 is about 85.4532192820.

Adding to 624001 its reverse (100426), we get a palindrome (724427).

The spelling of 624001 in words is "six hundred twenty-four thousand, one".