626249 has 8 divisors (see below), whose sum is σ = 685440. Its totient is φ = 568656.

The previous prime is 626239. The next prime is 626251. The reversal of 626249 is 942626.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-626249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512 + ... + 1230.

It is an arithmetic number, because the mean of its divisors is an integer number (85680).

2⁶²⁶²⁴⁹ is an apocalyptic number.

It is an amenable number.

626249 is a deficient number, since it is larger than the sum of its proper divisors (59191).

626249 is a wasteful number, since it uses less digits than its factorization.

626249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799.

The product of its digits is 5184, while the sum is 29.

The square root of 626249 is about 791.3589577429. The cubic root of 626249 is about 85.5557130361. Note that the first 3 decimals are identical.

The spelling of 626249 in words is "six hundred twenty-six thousand, two hundred forty-nine".