626648 has 16 divisors (see below), whose sum is σ = 1281960. Its totient is φ = 284800.

The previous prime is 626629. The next prime is 626663. The reversal of 626648 is 846626.

It is a happy number.

It is a d-powerful number, because it can be written as 6³ + 2⁹ + 6⁷ + 6⁷ + 4⁸ + 8³ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3473 + ... + 3648.

2⁶²⁶⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

626648 is an abundant number, since it is smaller than the sum of its proper divisors (655312).

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

626648 is a wasteful number, since it uses less digits than its factorization.

626648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138 (or 7134 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 626648 is about 791.6110155878. The cubic root of 626648 is about 85.5738791235.

The spelling of 626648 in words is "six hundred twenty-six thousand, six hundred forty-eight".