620551324 has 12 divisors (see below), whose sum is σ = 1143121000. Its totient is φ = 293945328.

The previous prime is 620551313. The next prime is 620551331. The reversal of 620551324 is 423155026.

It is a junction number, because it is equal to n+sod(n) for n = 620551292 and 620551301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4082499 + ... + 4082650.

Almost surely, 2^620551324 is an apocalyptic number.

It is an amenable number.

620551324 is a deficient number, since it is larger than the sum of its proper divisors (522569676).

620551324 is a wasteful number, since it uses less digits than its factorization.

620551324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165172 (or 8165170 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 620551324 is about 24910.8675882636. The cubic root of 620551324 is about 852.9545734588.

The spelling of 620551324 in words is "six hundred twenty million, five hundred fifty-one thousand, three hundred twenty-four".