624480331 has 2 divisors, whose sum is σ = 624480332. Its totient is φ = 624480330.

The previous prime is 624480323. The next prime is 624480361. The reversal of 624480331 is 133084426.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 624480331 - 2³ = 624480323 is a prime.

It is a super-2 number, since 2×624480331² = 779951367611739122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 624480293 and 624480302.

It is not a weakly prime, because it can be changed into another prime (624480361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312240165 + 312240166.

It is an arithmetic number, because the mean of its divisors is an integer number (312240166).

Almost surely, 2^624480331 is an apocalyptic number.

624480331 is a deficient number, since it is larger than the sum of its proper divisors (1).

624480331 is an equidigital number, since it uses as much as digits as its factorization.

624480331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 624480331 is about 24989.6044586544. The cubic root of 624480331 is about 854.7509419006.

The spelling of 624480331 in words is "six hundred twenty-four million, four hundred eighty thousand, three hundred thirty-one".