620398 has 16 divisors (see below), whose sum is σ = 1003104. Its totient is φ = 286720.

The previous prime is 620393. The next prime is 620401. The reversal of 620398 is 893026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286 + ... + 2542.

It is an arithmetic number, because the mean of its divisors is an integer number (62694).

2⁶²⁰³⁹⁸ is an apocalyptic number.

620398 is a deficient number, since it is larger than the sum of its proper divisors (382706).

620398 is a wasteful number, since it uses less digits than its factorization.

620398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 620398 is about 787.6534771078. The cubic root of 620398 is about 85.2884319168.

The spelling of 620398 in words is "six hundred twenty thousand, three hundred ninety-eight".