624601 has 2 divisors, whose sum is σ = 624602. Its totient is φ = 624600.

The previous prime is 624599. The next prime is 624607. The reversal of 624601 is 106426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389376 + 235225 = 624^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 624601 - 2¹ = 624599 is a prime.

Together with 624599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (624607) 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 as a sum of consecutive naturals, namely, 312300 + 312301.

It is an arithmetic number, because the mean of its divisors is an integer number (312301).

2⁶²⁴⁶⁰¹ is an apocalyptic number.

It is an amenable number.

624601 is a deficient number, since it is larger than the sum of its proper divisors (1).

624601 is an equidigital number, since it uses as much as digits as its factorization.

624601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 624601 is about 790.3170249969. The cubic root of 624601 is about 85.4805993167.

It can be divided in two parts, 624 and 601, that added together give a triangular number (1225 = T₄₉).

The spelling of 624601 in words is "six hundred twenty-four thousand, six hundred one".