626990 has 48 divisors (see below), whose sum is σ = 1423008. Its totient is φ = 194688.

The previous prime is 626987. The next prime is 627017. The reversal of 626990 is 99626.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 626990.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11804 + ... + 11856.

It is an arithmetic number, because the mean of its divisors is an integer number (29646).

2⁶²⁶⁹⁹⁰ is an apocalyptic number.

626990 is an abundant number, since it is smaller than the sum of its proper divisors (796018).

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

626990 is a wasteful number, since it uses less digits than its factorization.

626990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 626990 is about 791.8270013077. The cubic root of 626990 is about 85.5894439191.

The spelling of 626990 in words is "six hundred twenty-six thousand, nine hundred ninety".