624959 has 4 divisors (see below), whose sum is σ = 638304. Its totient is φ = 611616.

The previous prime is 624917. The next prime is 624961. The reversal of 624959 is 959426.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-624959 is a prime.

It is a d-powerful number, because it can be written as 6⁵ + 2⁵ + 9⁴ + 4⁵ + 5⁷ + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624259) 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 3 ways as a sum of consecutive naturals, for example, 6602 + ... + 6695.

It is an arithmetic number, because the mean of its divisors is an integer number (159576).

2⁶²⁴⁹⁵⁹ is an apocalyptic number.

624959 is a deficient number, since it is larger than the sum of its proper divisors (13345).

624959 is a wasteful number, since it uses less digits than its factorization.

624959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13344.

The product of its digits is 19440, while the sum is 35.

The square root of 624959 is about 790.5434839400. The cubic root of 624959 is about 85.4969277193.

The spelling of 624959 in words is "six hundred twenty-four thousand, nine hundred fifty-nine".