624319 has 2 divisors, whose sum is σ = 624320. Its totient is φ = 624318.

The previous prime is 624313. The next prime is 624329. The reversal of 624319 is 913426.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 624319 - 2³ = 624311 is a prime.

It is a super-2 number, since 2×624319² = 779548427522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6² + 2¹⁵ + 3¹² + 4⁵ + 1 + 9⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 624293 and 624302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312159 + 312160.

It is an arithmetic number, because the mean of its divisors is an integer number (312160).

2⁶²⁴³¹⁹ is an apocalyptic number.

624319 is a deficient number, since it is larger than the sum of its proper divisors (1).

624319 is an equidigital number, since it uses as much as digits as its factorization.

624319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 624319 is about 790.1385954375. The cubic root of 624319 is about 85.4677328853.

The spelling of 624319 in words is "six hundred twenty-four thousand, three hundred nineteen".