624906 has 24 divisors (see below), whose sum is σ = 1368900. Its totient is φ = 206016.

The previous prime is 624859. The next prime is 624917. The reversal of 624906 is 609426.

It can be written as a sum of positive squares in 2 ways, for example, as 540225 + 84681 = 735^2 + 291^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 624906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2566 + ... + 2798.

2⁶²⁴⁹⁰⁶ is an apocalyptic number.

624906 is an abundant number, since it is smaller than the sum of its proper divisors (743994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

624906 is a wasteful number, since it uses less digits than its factorization.

624906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 624906 is about 790.5099619866. The cubic root of 624906 is about 85.4945107792.

The spelling of 624906 in words is "six hundred twenty-four thousand, nine hundred six".