621163 has 8 divisors (see below), whose sum is σ = 669600. Its totient is φ = 574080.

The previous prime is 621143. The next prime is 621217. The reversal of 621163 is 361126.

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 621163 - 2¹³ = 612971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 621163.

It is not an unprimeable number, because it can be changed into a prime (621113) 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, 738 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (83700).

2⁶²¹¹⁶³ is an apocalyptic number.

621163 is a deficient number, since it is larger than the sum of its proper divisors (48437).

621163 is a wasteful number, since it uses less digits than its factorization.

621163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 216, while the sum is 19.

The square root of 621163 is about 788.1389471407. The cubic root of 621163 is about 85.3234733209.

Adding to 621163 its reverse (361126), we get a palindrome (982289).

It can be divided in two parts, 621 and 163, that added together give a square (784 = 28²).

The spelling of 621163 in words is "six hundred twenty-one thousand, one hundred sixty-three".