620678 has 16 divisors (see below), whose sum is σ = 988416. Its totient is φ = 291720.

The previous prime is 620671. The next prime is 620689. The reversal of 620678 is 876026.

It is a self number, because there is not a number n which added to its sum of digits gives 620678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620671) 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, 4673 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (61776).

2⁶²⁰⁶⁷⁸ is an apocalyptic number.

620678 is a deficient number, since it is larger than the sum of its proper divisors (367738).

620678 is a wasteful number, since it uses less digits than its factorization.

620678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 620678 is about 787.8312001946. The cubic root of 620678 is about 85.3012608692.

The spelling of 620678 in words is "six hundred twenty thousand, six hundred seventy-eight".