627998 has 16 divisors (see below), whose sum is σ = 1112064. Its totient is φ = 260280.

The previous prime is 627973. The next prime is 628013. The reversal of 627998 is 899726.

627998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (69504).

2⁶²⁷⁹⁹⁸ is an apocalyptic number.

627998 is a deficient number, since it is larger than the sum of its proper divisors (484066).

627998 is a wasteful number, since it uses less digits than its factorization.

627998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487.

The product of its digits is 54432, while the sum is 41.

The square root of 627998 is about 792.4632483592. The cubic root of 627998 is about 85.6352862063.

The spelling of 627998 in words is "six hundred twenty-seven thousand, nine hundred ninety-eight".