621238 has 8 divisors (see below), whose sum is σ = 964080. Its totient is φ = 299880.

The previous prime is 621227. The next prime is 621239. The reversal of 621238 is 832126.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5298 + ... + 5413.

It is an arithmetic number, because the mean of its divisors is an integer number (120510).

2⁶²¹²³⁸ is an apocalyptic number.

621238 is a deficient number, since it is larger than the sum of its proper divisors (342842).

621238 is a wasteful number, since it uses less digits than its factorization.

621238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10742.

The product of its digits is 576, while the sum is 22.

The square root of 621238 is about 788.1865261472. The cubic root of 621238 is about 85.3269072038.

The spelling of 621238 in words is "six hundred twenty-one thousand, two hundred thirty-eight".