620355 has 8 divisors (see below), whose sum is σ = 992592. Its totient is φ = 330848.

The previous prime is 620351. The next prime is 620359. The reversal of 620355 is 553026.

It is an interprime number because it is at equal distance from previous prime (620351) and next prime (620359).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620355 - 2² = 620351 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (620351) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20664 + ... + 20693.

It is an arithmetic number, because the mean of its divisors is an integer number (124074).

2⁶²⁰³⁵⁵ is an apocalyptic number.

620355 is a deficient number, since it is larger than the sum of its proper divisors (372237).

620355 is a wasteful number, since it uses less digits than its factorization.

620355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41365.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 620355 is about 787.6261803673. The cubic root of 620355 is about 85.2864614144.

The spelling of 620355 in words is "six hundred twenty thousand, three hundred fifty-five".